When Sexual Cultures Create Blueprints for How People Should Behave

When sexual cultures create blueprints for how people should behave:

A) everyone follows those blueprints and sexual norms.
B) it is seen that sexual variation in human populations dies out gradually.
C) a small subset will engage in a broader spectrum of variations,some of which will lead to increase the scope of what is acceptable in the mainstream.
D) large complex industrial countries have fewer variations in sexual behavior.
E) sexual individuality narrows down to exclude variations than had been seen before.