How does social identity affect how people treat one another? A. It can make people hide their feelings from others.
B. People ignore those who have a different social identity.
C. It can make people more friendly to strangers.
D. People favor those who share their social identity.

D. People favor those who share their social identity.

Explanation:

While social identification also helps people’s self-concept, identity, self-esteem, and emotional social behavior, it is proven people have in-group favoritism towards people with with who they share a social identity. People often subconsciously categorize people as us vs them, meaning us category comes from their social group, while them is to the members of other groups and identities. From that comes the favoritism of the group we are in, instead of the outgroup we do not belong to. Psychologically, people will likely group up and favor those with whom they share social status and identity, as they see them automatically as close to them, familiar, and better than others.

i think it's b or c hope this