[Solved] Anderson is reading his morning paper and sees the following headline: "Men Should Avoid Rock Music When Playing Board Games." (This headline is based on a study conducted by Fancourt, Burton, & Williamon, 2016.) In the study, men and women played the game "Operation" when listening to different types of music. Male participants performed worse when listening to AC/DC than when listening to Mozart, but female participants' performance did not differ based on music. How many variables are included in this study? A)one B)two C)four D)five Condoms: Barrier devices used during sexual intercourse to reduce the probability of pregnancy and the spread of sexually transmitted infections. Comarital Sex: Sexual relations between a married person and someone other than their spouse with the consent of the spouse. Wife Swapping: A behavior or activity where consenting married couples exchange partners for sexual purposes. Porn Industry: The commercial sector involved in producing and distributing sexually explicit materials, like videos and magazines.