Which of the following statements reflects a main characteristic of heterosexual marriage?

The statement that reflects a main characteristic of heterosexual marriage is that it is a union defined by cultural or social norms. Heterosexual marriage is often shaped by societal standards and expectations that dictate the roles, behaviors, and responsibilities of partners within the marriage. These norms can include traditional practices, religious beliefs, and cultural values that influence how marriage is perceived and conducted in different societies.

In many cultures, heterosexual marriage is seen as a foundational institution that reinforces societal structures. It can carry significant importance in terms of family lineage, inheritance, and community cohesion. While financial stability, differing social backgrounds, and mutual attraction can all play roles in marriages, they do not encapsulate the broader concept of marriage as being deeply interwoven with cultural and social expectations.