The height of a plant in centimeters is a function of its age in weeks, w. Let p represent this function.

What does p(10) mean in this situation?

A) The plant's height in centimeters after 10 weeks.

B) The plant's age, in weeks, when it is 10 centimeters tall.

C) The plant's height after w weeks.

D) The plant's age, in weeks, when it is p centimeters tall.