Parents Are Upset After Learning That Their Child Is Homosexual

Parents are upset after learning that their child is homosexual.They ask the nurse,"What causes homosexuality; was it something we did?" The nurse responds best when stating:

A) "The cause of homosexuality has not been determined as of yet."
B) "It's thought that homosexuality is transmitted via the X chromosome."
C) "Many people consider homosexuality to be an expression of normal sexual behavior."
D) "You sound as though you are expressing concern about both your child and yourself."