One Research Study by Case Et Al

One research study by Case et al. (2014) found that exposing participants to videotaped discussions of male and heterosexual privilege had what effect?

A) prompted men to become more defensive and less open to notions of male privilege
B) caused women and sexual minorities to become even more aware of group based privilege but had no effect upon men
C) unconsciously made men less likely to employ automatic stereotypes
D) reduced sexist attitudes and increases motivation to avoid prejudice