Which of the Following Probably Has a Role in the Development

Which of the following probably has a role in the development of sexual orientation?

A) Sons become gay when they have a domineering mother and a weak father.
B) Heredity and hormones seem to influence sexual orientation.
C) Girls are more likely to become lesbians if their fathers are their primary role models.
D) Children who are raised by gay and lesbian parents usually become gay or lesbian themselves.