Ella quiere superar el reto.

Yes. In Spanish, the subject pronoun is often omitted because the verb ending already shows who is doing the action.

• quiere = he/she/it wants
• So Quiere superar el reto is also perfectly natural.

You include ella when you want to:

• emphasize she
• contrast her with someone else
• make the sentence clearer in context

So both are possible:

• Ella quiere superar el reto.
• Quiere superar el reto.

Because after querer + another verb, the second verb stays in the infinitive.

Pattern:

• querer + infinitive = to want to + verb

Examples:

• quiere superar = wants to overcome
• quiero comer = I want to eat
• queremos salir = we want to leave

So superar must stay in the infinitive form.

No. With querer, you do not use de before the infinitive.

Correct:

• Ella quiere superar el reto.

Incorrect:

• Ella quiere de superar el reto.

English learners sometimes expect an extra word because English has wants to, but in Spanish the structure is simply:

• querer + infinitive

Quiere is the third person singular present tense of querer.

That means it can mean:

• she wants
• he wants
• it wants

Conjugation of querer in the present:

• yo quiero
• tú quieres
• él/ella/usted quiere
• nosotros/nosotras queremos
• vosotros/vosotras queréis
• ellos/ellas/ustedes quieren

Notice that querer is a stem-changing verb:

• e → ie in most forms
• but not in nosotros and vosotros

Spanish often uses the definite article more than English does. Here, el reto means the challenge.

This usually suggests a specific challenge that is understood from the context.

Compare:

• superar el reto = overcome the challenge
• superar un reto = overcome a challenge

Both are possible, but they mean slightly different things:

• el reto = a known or specific challenge
• un reto = any challenge, not previously identified

Reto means challenge. In many contexts, it is very similar to desafío.

In Spain, reto is very common and natural.
Desafío can also mean challenge, but it can sometimes sound:

• a bit more formal
• a bit more literary
• or closer to defiance or a direct challenge depending on context

For a general sentence like this, reto sounds very normal.

Superar is a flexible verb. Depending on context, it can mean:

• to overcome
• to get past
• to surpass
• to beat
• sometimes to pass (for example, an exam)

In superar el reto, the most natural meaning is:

• to overcome the challenge
• to rise to the challenge
• possibly to beat the challenge

So superar is broader than one single English verb.

Sometimes, but superar is usually the more natural choice here.

• superar un reto = overcome a challenge
• vencer often means defeat, especially an opponent, enemy, fear, or obstacle

You may hear:

• superar un reto
• superar una dificultad
• vencer el miedo
• vencer al enemigo

So vencer el reto is understandable, but superar el reto is the more idiomatic wording.

The basic word order is:

• Ella = subject
• quiere = conjugated verb
• superar = infinitive complement
• el reto = direct object of superar

So the structure is:

Subject + verb + infinitive + object

Spanish word order is fairly flexible, but this is the most neutral and natural order here.

Yes. In Spanish, you can make it a question mainly through intonation, and in writing with question marks:

• ¿Ella quiere superar el reto?

This means:

• Does she want to overcome the challenge?

Spanish does not usually need an extra helping verb like English does.

A rough pronunciation guide is:

• Ella → EH-ya
• quiere → KYE-re
• superar → soo-peh-RAR
• el reto → el RE-to

In much of Spain:

• ll in ella is usually pronounced like y
• r in reto is a light tap
• the stress falls on:
  • quie-re
  • su-pe-RAR
  • RE-to

A rough full pronunciation:

• EH-ya KYE-re soo-peh-RAR el RE-to

No. Ella specifically means she.

However, quiere by itself could mean:

• he wants
• she wants
• it wants
• you want (formal singular, usted)

Once you add ella, the subject is clearly she.

Usually no, not in the same way.

• ella = she
• ésta/esa can mean this one/that one, depending on context

If you are referring to a woman as a person, ella is the normal subject pronoun.

Use ésta or esa only when you are specifically pointing out or contrasting someone, and even then the structure and tone may change.

So for a normal sentence, ella is the right choice.

Yes, it is completely natural in Spain.

A Spaniard might also say:

• Quiere superar el reto.
• Ella quiere superar este reto.
• Quiere ser capaz de superar el reto.
  if they want to be more explicit

But your original sentence is simple, correct, and natural:

• Ella quiere superar el reto.