Multiple Choice
Rudy is a 16-year-old that likes to brag about his recent development of underarm hair. He says that he is a man now and that he is an adult. Rudy's development of underarm hair is an example of a(n) __________.
A) adolescent growth spurt
B) primary sex characteristic
C) secondary sex characteristic
D) secular trend
Correct Answer:

Verified
Correct Answer:
Verified
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