Identical Twins Have Been Shown to Have Some Amazing Psychological

Multiple Choice

Identical twins have been shown to have some amazing psychological similarities.But we should be cautious about attributing these similarities to shared genes because

A) the twins may have been raised in completely different environments.
B) genetic factors influence physical,not psychological,characteristics.
C) any two strangers are likely to share many coincidental similarities.
D) many fraternal twins have been shown to be psychologically different from each other.