In Studying Twins and Pubertal Onset, the Following Was Found

Multiple Choice

In studying twins and pubertal onset, the following was found:

A) pubertal onset is closer for dizygotic twins than for monozygotic twins.
B) pubertal onset is closer for monozygotic twins than for dizygotic twins.
C) pubertal onset is earlier for twins than it is for singletons.
D) pubertal onset is later for twins than it is for singletons.