Loyalty and devotion to a state that represents a particular group's culture isGroup of answer choicesnationalism.nation.nation-state.state.multiculturalism.

The concept that embodies loyalty and devotion to a state which represents a specific group's culture is known as nationalism. Nationalism refers to the belief or political ideology that emphasizes the interests of a particular nation, often in relation to cultural identity, heritage, language, and historical experiences. This sentiment can lead to a sense of pride among its members and can foster a desire for self-governance or independence from external influences.

In the context of the answer choices provided:

1. Nationalism - Loyalty and devotion to a cultural state.
2. Nation - A group of people sharing common cultural traits.
3. Nation-state - A political entity characterized by a defined territory and governance while reflecting a specific national identity.
4. State - A political institution with defined boundaries and government.
5. Multiculturalism - A societal approach that recognizes and values diverse cultural backgrounds.

Hence, nationalism is the correct answer as it directly relates to the loyalty and devotion to a cultural state.