In Terms of Gender Relations on College Campuses, Which of the Following

In terms of gender relations on college campuses, which of the following do Boswell and Spade note as a trend that has occurred over the last several decades?

A) more traditional patterns of dating are prevalent.
B) homosexual partnering has recently become an accepted form of gender relations.
C) fewer men and women are meeting within the context of the Greek system.
D) hooking up has replaced dating as the predominant form of inter-gender relations.