Answer:
Complex Marriage is the correct answer.
Step-by-step explanation:
The marriages in which all the men of community are married to all the women of the community it is known as Complex marriages. The sexual relations are also permissible as long as there was mutual agreement.
The Oneida community was founded by John Humphrey Noyes, it was one of the most successful Utopian socialist communities in US. Noyes was the son of wealthy New England businessmen and was influenced by evangelist Charles Finney. In 1836 he wrote “Battleaxe letter” and argued for free love.