Researchers Have Found That When Comparing the Sexual Orientation of Identical

Multiple Choice

Researchers have found that when comparing the sexual orientation of identical and fraternal twins, ______.

A) it is impossible to make valid comparisons
B) identical twins are less likely than fraternal twins to have the same sexual orientation
C) identical twins are just as likely as fraternal twins to have the same sexual orientation
D) identical twins are more likely than fraternal twins to have the same sexual orientation