Reading Comprehension (RC) | Re: Polygamy in Africa

3. The passage provides each of the following, EXCEPT
(A) the year of publication of Remi Clignet’s book “Many Wives, Many Powers”
(B) the year in which John Mbiti made a claim that polygamy is an accepted institution
(C) examples of African womens literary productions devoted to family relations
(D) reasons for missionary opposition to polygamy
(E) current research perspectives on polygamy

Can someone tell me why option C is right? I marked the option as E. What line in the passage tells