Answer,
1. (A,B)
2. (B, D)
3. (C,A)
4. (D, C)
Explanation,
Let me label them so it's easier to understand,
Race/A
Majority Group/B
Ethnicity/C
Minority Group/D
------------------------------
A shared identity based on cultural elements such as heritage language and religion/A
A socially constructed group of people who share physical characteristics that are considered significant by society and that are used to distinguish them from other groups/B
People who are singled out of unequal treatment in her regarding services object of collective discrimination/C
A group of subset that consist of more than half of the entire groups members/D
Hope This Helps :-)
