Which One of the Following Best Illustrates Physical Development as a Developmental

Which one of the following best illustrates physical development as a developmental domain?

A) Mark can watch a basketball player and critique his movements.
B) Tammy can hold and use a pencil more easily than she could last year.
C) Timothy is increasingly able to understand other people's points of view.
D) Thomas learns how to count by practicing counting with a variety of household objects.