Sandy and Lester Were Debating the Functionalist Account of Marriage

Sandy and Lester were debating the functionalist account of marriage. Lester held that sexual relations outside the marriage undermined its role in regulating sexual reproduction. Sandy, referring to Murdock's research on preliterate societies, disagreed. Which of the following reasons support Sandy?

A) Murdock's research found that, in a very significant percentage of the societies he studied, polygamy was widely practised, showing that only in the context of sanctioned marriage relations can sexual relations by socially approved.
B) Murdock's research found that extramarital relations did not exist in preliterate societies, showing that it is only in modern societies that sexual regulation is required.
C) Murdock's research found that, in a very significant percentage of the societies he studied, extramarital sexual relations were not forbidden, supporting the position that monogamy is not an essential feature of marriage.
D) Murdock's research found that changes in religious practices associated with the scientific revolution altered the relationship between marriage and the regulation of sexuality, demonstrating that monogamy is not an essential feature of marriage.