Which Statement About DRD4, a Gene That Affects Dopamine Activation

Which statement about DRD4, a gene that affects dopamine activation, is correct?

A) People with the long form of the gene are more sexually active and less inhibited, regardless of sexual orientation.
B) People with the short form of the gene are more sexually active and less inhibited, regardless of sexual orientation.
C) Homosexual people with the long form of the gene are more sexually active and less inhibited.
D) Heterosexual people with the long form of the gene are more sexually active and less inhibited.