Question

There is no simple or universally accepted explanation for the fact that nearly all cultures ban incest. However, the most accepted explanation for the incest taboo is Selected Answer:

A. that isolated social groups are better at survival.
B. a genetically determined attraction for those most different from us.
C. a genetically programmed instinctive horror.
D. that following rules of exogamy is adaptively advantageous.
E. a widespread and well-founded fear of biological degeneration.

Answer 1

D. that following rules of exogamy is adaptively advantageous.

Step-by-step explanation:

Incest means sexual relationship between the members sharing blood relations. The incest taboo is applied to a varying degree among different cultures according to the degree of blood connection among the members like in some cultures it is applied to immediate siblings, others attach it to third level relatives. However, the most acceptable explanation of the incest taboo is the inbreeding because children of close genetic chain parents tend to have genetic disorders.