According to Recent Reports of a Large Scale Study, Which

According to recent reports of a large scale study, which of the following people should be most likely to masturbate as part of their sexual lives?

A) Someone with a college degree, who makes over $75,000 yearly income.
B) Someone with a high-school diploma, who makes over $75,000 yearly income.
C) Someone with a college degree, who makes under $35,000 yearly income.
D) Someone with a high-school diploma, who makes under $35,000 yearly income.