Although There Is Considerable Cultural Variability in Sexual Attitudes and Behaviours

Although there is considerable cultural variability in sexual attitudes and behaviours, two almost universal norms pertain to:

A) age of acceptable sex; extra-marital sex
B) age at which intercourse is acceptable; incest taboo
C) extra-marital sex; kissing as a form of sexual interaction
D) kissing as a form of sexual interaction; incest taboo
E) kissing as a form of sexual interaction; extra-marital sex as forbidden