Question

what is a multinational state?
a state that belongs to multiple international organizations
a state that controls territory on multiple continents
multiple states that share a common government
a single state that contains multiple nations

Explanation:

A multinational state is defined as a single state that contains multiple nations. The other options do not accurately define a multinational state. A state belonging to multiple international organizations is about its international membership, not its internal national composition. A state controlling territory on multiple continents is about territorial expanse. Multiple states sharing a common government is more related to a confederation or similar political structure rather than a multinational state.

Answer:

A single state that contains multiple nations