In most boys, the first outward sign of puberty is
A. the growth of the testes and scrotum.
B. the appearance of facial hair.
C. the appearance of pubic hair.
D. register changes in the voice.
Answer:A
In most boys, the first outward sign of puberty is
A. the growth of the testes and scrotum. B. the appearance of facial hair. C. the appearance of pubic hair. D. register changes in the voice.