The Nurse Teaching a Class on the Reproductive System Is

The nurse teaching a class on the reproductive system is discussing what happens at puberty. Which statement does the nurse make?

A) Boys and girls go through puberty at the same time.
B) Most girls develop breasts and start their menses at about the same time.
C) The nocturnal emissions that adolescent boys have contain a large number of sperm.
D) The onset and progress of puberty varies widely from person to person.