pride in ones contributes to feelings of nationalism.\nethnicity\nindependence\nfamily\neducation

Brief Explanations:

Nationalism often involves pride in one's ethnic group. Ethnicity refers to a group of people who share a common culture, language, history etc. Pride in ethnicity can fuel nationalistic feelings. Independence is more about a political - state status, family is a smaller social unit, and education is a means of development rather than a direct contributor to nationalism in the same sense as ethnicity.

Answer:

ethnicity