The greater vestibular gland or bartholin gland which is part of vestibular gland in female are paired gland ,situated one on each side of vaginal opening and are homologous to bulbourethral or cowper's gland of male which secrete viscid fluid that supplements & lubricates during sexual intercourse.
while clitoris is situated posterior to mons pubis which is homologous to glans penis of male and its function is to erection during sexual intercourse as it contain erectile tissue
so option D will be correct answer bcoz prostrate of male is not equivalent to any one of them