Liam's Mother Reveals That Although She'd Never Hid from Him

Multiple Choice

Liam's mother reveals that although she'd never hid from him that he was adopted, she did hide that he had an identical twin brother in another province. As Liam, a gay man, tries to track his brother down, he wonders what the chances are that he will be gay as well. What is the probability?

A) It is almost certain, as studies show that where one twin is gay, 93% of identical twins are both gay.
B) It is very low, as studies show that where one twin is gay, 7% of identical twins are both gay.
C) It's impossible to tell as there has been no research on siblings and sexual/affectational identity development.
D) It is better than chance as studies show that where one twin is gay, 52% of identical twins are both gay.