Which of the following best describes cohabitation?

The choice that defines cohabitation accurately is the one stating that it involves living together without being married. Cohabitation typically refers to a romantic relationship where two individuals share a living space and a domestic life without formally formalizing their relationship through marriage. This arrangement can involve shared finances, domestic responsibilities, and emotional support, similar to that found in marriage, but without the legal and social formalities associated with it.

On the other hand, living apart while maintaining a relationship does not capture the essence of cohabitation, as this would imply a physically separated partnership rather than one characterized by shared living. Establishing separate finances together suggests that the individuals are independently managing their money rather than combining resources, which is often not the case in a cohabitation scenario. Entering into a legal marital agreement is the definitive opposite of cohabitation, as it indicates a formalized relationship recognized by law, contrasting with the informal nature of cohabitation. Thus, the concept of living together without marriage most accurately encompasses what cohabitation entails.