In North America,the average age of onset of puberty is about ____ years old for girls and _____ years old for boys.
A) 9; 14
B) 11; 13
C) 10; 12
D) 12; 15

Name: In North America,the average age of onset of puberty is about ____ years old for girls and _____ years old for boys. A) 9; 14 B) 11; 13 C) 10; 12 D) 12; 15
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The Answer of In North America,the average age of onset of puberty is about ____ years old for girls and _____ years old for boys.
A) 9; 14
B) 11; 13
C) 10; 12
D) 12; 15

In North America,the Average Age of Onset of Puberty Is