Answer:
Marriage occurs in every culture in some form, but its exact characteristics vary widely
Explanation:
Marriage is a term that describes the culturally and socially accepted union of two or more individuals. It is widely considered as an established method of legislating sexual intercourse by specifying sexual partners.
However, there are different forms of marriage across various cultures in the world, such as Monogamy; same-sex marriage, serial monogamy., Polygamy; polygyny, polyandry., Group marriage, fixed-term marriage, sororate, ghost marriage, levirate, etc.
Hence, the statement that is true about marriage is that Marriage occurs in every culture in some form, but its exact characteristics vary widely.