A Researcher Is Studying Condom Use Among College Students

A researcher is studying condom use among college students. In which condition of this study will students be most likely to engage in safe-sex in the future?

A) Participants were asked to tell a group of high school students about the dangers of unprotected sex and then later were asked to list all of the times they had engaged in unprotected sex themselves.
B) Participants were asked to write down all of the times they had engaged in unprotected sex.
C) Participants wore white lab coats and were then asked to think about all of the times they had engaged in unprotected sex.
D) All of the above