A nurse is assessing an 8-month-old infant for cerebral palsy. Which of the following findings is a manifestation of the condition?

A. Smiles when a parent appears: Social smiling is a normal developmental milestone and not indicative of cerebral palsy. B. Sits with pillow props: Infants with cerebral palsy may have delayed gross motor development and require support to sit, indicating muscle weakness or abnormal tone. C. Tracks an object with eyes: Visual tracking is a normal developmental milestone for an 8-month-old. D. Uses a pincer grasp to pick up a toy: Fine motor milestones such as pincer grasp typically emerge around 9–10 months and are not specific early indicators of cerebral palsy at 8 months.