Sam and Donald Are in a Same-Sex Relationship

Sam and Donald are in a same-sex relationship. They met a few years ago online. Why were they more likely to meet online than most mixed-sex couples?

A) They were 3 times more likely because, on average, people attracted to the same sex hold fewer notions of taboos associated with online dating.
B) They were twice as likely because the "gay villages" are not as popular as they once were since the advent of the internet.
C) They are not more likely to meet online than anyone else.
D) They were 10 times more likely because same-sex couples rarely go on dates or associate with other non-heterosexual people.