Answer:
cooperative play
Explanation:
James has been supervising a group of girls who have created a club during playtime. The girls spend their playtime creating and enforcing rules of club membership. The girls at James' school whose play requires them to agree on goals, rules, and actions are engaging in cooperative play
The best answer is minority groups (racial groups would work too, but only if physical characteristics are mentioned, but not for cultural practices).
Minority groups are often discriminated: treated unfairly.
I think the answer is the bantu family