Which of the following statements support the hypothesis that the onset of puberty is related to nutritional state?
I) On average, puberty occurs at a younger age now than it did 200 years ago.
II) Girls with large fat stores generally enter puberty earlier than thin girls do.
III) The nutritional state of the U.S. population is much better than it was 200 years ago.
A) only I and III
B) only II and III
C) only I and II
D) only II
E) I, II, and III
Answer: E
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