Your Father-In-Law Thinks That a Homosexual Orientation Is a Choice

Your father-in-law thinks that a homosexual orientation is a choice people make and is therefore not influenced by genetics.To dissuade him of this erroneous belief,you would be best advised to note that

A) homosexuality does not appear to run in families.
B) identical twins are no more likely than fraternal twins to share their twin's homosexual orientation.
C) researchers have been able to create female fruit flies that,during courtship,act like males.
D) homosexual men tend to have more homosexual relatives on their mother's side of the family than on their father's side of the family.