Question

Developmental milestones: sustains head in plane of body, follows object 180deg, some vowel sounds

Answer 1

During the first two months after birth, an infant develops head control and starts making vocal sounds. By the end of the fourth month, an infant can lift their head, follow objects with their eyes, and make vowel sounds.

Step-by-step explanation:

During the first two months after birth, an infant develops the ability to hold their head erect and steady when held in an upright position. They also start cooing and babbling, and they begin to smile at their parents. By the end of the fourth month, an infant can lift their head 90 degrees while lying prone, follow objects with their eyes, and make vowel sounds.