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. Rolls over from abdomen to back: This milestone typically occurs around 4 months of age, not at 2 months. At 2 months, the infant’s motor skills are not yet developed enough for rolling over. B. No head lag when pulled into a sitting position: Infants usually continue to have some head lag until about 4 months. At 2 months, head control is still limited, so absence of head lag would not be expected. C. Lifts head 45° when lying prone: By 2 months, infants can momentarily lift their head and upper chest to about 45 degrees when placed on their stomach. This is an appropriate gross motor milestone for this age. D. Rolls over from back to abdomen: This milestone usually develops later, around 6 months of age, when trunk and arm strength are more advanced. It is not expected at 2 months.