A nurse is collecting data from a 3-month-old infant. Which of the following is an expected developmental finding?

A. Holds arms out to be picked up is correct. At 3 months of age, infants typically begin to display social behaviors such as holding their arms out to be picked up. This is an early sign of attachment and recognition of caregivers. B. Rolls from back to side is incorrect. Rolling from back to side usually occurs around 4 to 5 months, not at 3 months. Infants at 3 months may start to push with their arms during tummy time but typically cannot roll yet. C. Displays fear toward strangers is incorrect. Fear of strangers typically develops around 6 to 8 months of age, so a 3-month-old infant would not yet exhibit stranger anxiety. D. Able to hold a rattle is incorrect. At 3 months, infants may begin to grasp objects but are not yet able to hold them consistently. Fine motor skills, including voluntary grasping, typically develop between 4 to 6 months.