A nurse is teaching a group of parents about expected development of gross motor skills during infancy. The nurse should teach that the following developmental tasks are expected to occur in what order? (Move the steps, placing them in the order of performance. Use all the steps.)

A. Rolls from back to side: This is usually the first gross motor milestone among the options, occurring around 4–6 months. It demonstrates early trunk rotation and control of head and shoulder movements. B. Rolls from back to abdomen: This skill typically develops after rolling from back to side, around 5–6 months. It requires stronger neck and trunk muscles, as well as coordinated limb movement to shift the center of gravity. C. Sits steadily unsupported: Sitting without support generally occurs between 6–8 months. It reflects significant trunk and abdominal muscle development, allowing the infant to maintain upright posture and balance independently. D. Changes from prone to sitting: This is a more advanced gross motor skill, usually emerging around 9 months. It requires complex coordination, upper body strength, and balance to transition from lying on the stomach to a seated position