A) 9 and 11 years.
B) 11 and 14 years.
C) 15 and 18 years.
D) 19 and 21 years.
Correct Answer: B
Solution :
The human body undergoes several changes during adolescence. These changes mark the onset of puberty. During puberty, secondary sexual characteristics develop. Girls reach puberty earlier than boys.You need to login to perform this action.
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