A nurse is teaching a group of parents about expected gross motor skills for infants. Which of the following skills should the nurse include for a 2- month-old infant?

A. No head lag when pulled into a sitting position: By 2 months, some head lag may still be present when pulling the infant to a sitting position. Full control of the head without lag typically develops closer to 4 months of age. B. Lifts head 45° when lying prone: At 2 months, infants generally can lift and hold their head at about a 45-degree angle when placed on their stomach. This demonstrates early neck muscle strength and control appropriate for this age. C. Rolls over from abdomen to back: Rolling over usually occurs later, around 4 to 6 months. It is not an expected gross motor milestone for a 2-month-old infant. D. Rolls over from back to abdomen: This is a more advanced motor skill that typically develops between 5 to 6 months of age and would not be expected at 2 months.