Marriage Between Cousins,including "First Cousins

Marriage between cousins,including "first cousins"

A) is taboo in all cultures due to genetic problems for children born in such marriages.
B) was common among the Mormons of the United States until it was outlawed.
C) is the standard practice in small island populations of Europe,such as Tory Island.
D) was probably the prominent form of marriage among early foragers.
E) is the preferred form of marriage among many Muslim populations.