What Statement Best Describes Common Findings Related to Comarital Sex

What statement best describes common findings related to comarital sex?

A) Couples who engage in comarital sex were much more popular in the 1970s and have since been on the decline.
B) Couples who engage in comarital sex often come from families where comarital sex was practiced.
C) Those who engage in comarital sex reported higher levels of sexual satisfaction but less overall marital satisfaction compared to married couples who do not engage in comarital sex.
D) Those who engage in comarital sex reported happier marriages and overall life satisfaction than those in marriages who do not participate in comarital sex.