Of the Following,the One That Best Exemplifies the "Double Standard

Of the following,the one that best exemplifies the "double standard" of sexual behavior is that:

A) premarital sexual behavior is tolerated more in urban areas than in rural ones
B) most people are more tolerant of male than female promiscuity
C) there is one standard of sexual behavior for heterosexuals and another one for gays and lesbians
D) most people are more tolerant of sex outside of marriage for divorced people than for never-married people
E) Americans have different standards of sexual activity according to a person's social class