Who is sociologist origin the sex communism theory of family?1. Plato,2. Befralt3.Morgan4. Hailerryman​

The sociologist who originated the sex communism theory of family is Friedrich Engels. However, among the options provided in your question, none of the names directly correspond to this theorist. If we consider the closest figure associated with discussions about the family in the context of sex communism and communal living, it could be Karl Marx, who collaborated with Engels, but he isn't listed here either.

1. Plato - A philosopher known for his ideas on ideal forms and governance.
2. Befralt - This name seems to be misspelled or not well-known in standard theory.
3. Morgan - Likely refers to Lewis Henry Morgan, who studied kinship and social structures, not specifically sex communism.
4. Hailerryman - This name doesn't appear to correspond to any prominent sociologist.

Thus, none of the options accurately reflects the originator of the sex communism theory in relation to family structure. The correct answer should point to Friedrich Engels as a key figure in this context.