Correct Answer: (a) D. C. A. B Only
Solution:L.H. Morgan said that the initial evolution of society was such that there was consanguinal form of marrige which took place between a brother and a sister, secondly as the society evolved there came communal marriage, which means group marriage where several/group of sisters get married to a joint/Group of men, third came the synadyasmain under this type, there is signle pair of marriage without the right of exclusive cohabitation, means they do not live together but one person has a relation with another, patriarchal, where there is marriage between one man and one women with exclusive right of cohabitation. Last stage is monogamous where there is marriage between only one man and one woman.