Carlos has dated a variety of women from diverse racial, ethnic, and economic backgrounds but ended up marrying someone from his small town in Cuba. Sociologists would say that this clearly represents the principle of .

Homogamy

Explanation:

Principle of homogamy is defined as the concept in which like quality attracts similar quality. The person have similar expectation about role through like attracts like characteristics.

According to the question, principle of homogamy is displayed through scenario of Carlos because even though he has dated different cultural, racial and ethical background women, he married a woman belonging to his town .He was attracted to marry the similar ethical and cultural background woman to which he belong due to like-attract-like feature.