A nurse is assessing a 3-month-old infant. Which of the following findings should the nurse report to the provider?

Rationale: A. At 3 months, infants are not yet expected to bring objects to their mouth independently; this skill develops closer to 4 months. B. Picking up objects with fingers (pincer grasp) develops around 8–9 months, so this is not expected at 3 months. C. Sitting without support is not expected until about 6–8 months, so inability to do so at 3 months is normal. D. By 3 months, infants should be able to raise their head and chest while in the prone position. Failure to do so may indicate a developmental delay or neuromuscular issue and should be reported.