a difficult babyan easy babya slow to warm up babya colicky babyBrianna is 18 months old. She cries frequently, is hard to soothe, and wakes frequently during the night. According to Thomas and Chess, she would be considered ________.Elon.io is an online learning platformWe have an entire course teaching Psychology grammar and vocabulary.Start learning Psychology nowYour questions are stored by us to improve Elon.ioYou've reached your AI usage limitSign up to increase your limit.