The main difference between a nation and a state is that nations while states a. are sovereign . . have no representation in national government b. have small populations . . have large populations c. have a defined territory . . may have no territory d. are conceptual . . are concrete

The main difference is option D

In political science, we refer to nations as a group of people that share their culture, language, religion and values. While state refers to a patch of land with sovereign government. States often coincide with nations but not always. When this doesn't happen, sometimes they have civil wars, as is the case in some countries in Africa.

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D. are conceptual . . . are concrete

Explanation:

It can be used interchangeably or be synonymous with country and state. A nation, therefore, is described as a community of people united by culture, beliefs and customs; while state refers to a certain territory in which it has jurisdiction. Thus country becomes theoretical, or the concept, when state is concretely expressing the theory.

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