women who have been drinking prior to being sexually assaulted are:

According to the theory of Testa and Livingston (1999), women who have been drinking are more likely to take risks they would not take in normal situations because they're brain ceases to find easy risk-free solutions to otherwise standard situations. They are thus more prone to engage in risky behavior such as accepting a ride from a stranger.

Ithink the answer you are looking for is (b).