Identical Twins Are Somewhat ________ Than Fraternal Twins to Share

Multiple Choice

Identical twins are somewhat ________ than fraternal twins to share a homosexual orientation;however,________.

A) more likely;sexual orientation is influenced less by heredity than by environment
B) less likely;sexual orientation is influenced less by heredity than by environment
C) more likely;because sexual orientation differs in many twin pairs,other factors are also at work
D) less likely;because sexual orientation differs in many twin pairs,other factors are also at work