Which Statement Would an Expert in Male Puberty Make

Which statement would an expert in male puberty make?

A) "In boys,facial hair is the first to develop."
B) "Boys who have severe acne have a lower-than-normal testosterone level."
C) "Even though boys appear to reach puberty two years after girls,on average spermarche occurs only about 6 months later than menarche."
D) "Male physical development during puberty follows the cephalocaudal sequence."