Multiple Choice
In industrialized nations,age of menarche __________ per decade from 1900 to 1970.
A) increased by about 1 to 2 months
B) increased by about 3 to 4 months
C) declined by about 3 to 4 months
D) declined by about 5 to 6 months
Correct Answer:

Verified
Correct Answer:
Verified
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