What defines cohabitants in a living situation?

Cohabitants in a living situation are primarily defined by the joint usage or ownership of property. This reflects a shared living arrangement where individuals maintain a common residence and often share responsibilities related to that space.

When cohabitants live together, it typically involves not just sharing a roof but also sharing aspects of their lives, such as financial responsibilities, household duties, and personal belongings. This connection through physical space and the associated commitments often distinguishes cohabitants from individuals who simply share expenses without living together.

The other options highlight different aspects that may not encompass the broader concept of cohabitation. For instance, sharing expenses alone does not necessitate a cohabitation arrangement, as individuals can share expenses while residing separately or in different living situations. Similarly, being involved in a marriage contract clearly defines a legal relationship that is distinct from cohabitation, which may not require any formal legal ties. Lastly, living separately while dating does not imply cohabitation, as it indicates distinct residences rather than a joint living situation.