Question

Nationalism is to pride in one's national identity as a _______ is to a group of people who share a common identity, a sense of unity, and a desire for self-government.

A. region
B. country
C. nation
D. state

Answer 1

Well, I would say that the relation here is "word" :definition:
to pride in one's national identity is the definition of "nationalism"

So what is the word for a group of people who share a common identity, a sense of unity, and a desire for - this would be a "nation"!