Difficulty: Medium
Average Score: 90%
Simulated
You're assessing a 4-month-old infant. Which finding below is a normal milestone that should be reached by this infant at this age?
Correct answer
B
Rationale
The correct answer is B: Rolls from tummy to back. At 4 months, infants typically master this milestone as part of their gross motor development. This skill demonstrates strengthening of core muscles and coordination. Other choices are incorrect because: A) Pincer grasp typically develops around 9-12 months; C) Walking with support usually occurs around 9-12 months; D) Rolling from back to tummy usually occurs before rolling from tummy to back, around 3-4 months.