Which of the following expresses the relationship between the number of European settlers in colonies in Africa, Asia, and Oceania and the extent of racial segregation and discrimination in the imperialism of the nineteenth century?

Colonies with a large European settler population experienced more racial discrimination and racial segregation.

Explanation:

Racial discrimination occurs when people are discriminated against because of the color of their skin, or the origin of their ethnicity or race.  

Racial discrimination can be in form of a refusal to share resources with, do business with, or socialize with people of a particular race or group.

Racial segregation refers to the technique of separating people into ethnic or any other of racial group in daily life.

Racial segregation can be in form of a compulsory use of different institutions like hospitals and schools by people that are of different races, and it can also be a spatial separation of the races.

This were what obtained most during the colonial era in which colonies with a large European settler population experienced more racial discrimination and racial segregation.