Which one is not collectivism?

A、A person’s identity is tied up with that of their group, such as family members, co-workers, or members of some other group.;
B、People are highly involved in each other’s lives and experience strong feelings of loyalty.;
C、Any type of conflict or saying "no" harms the harmony of the group, so saying "no" or any sort of conflict is heavily avoided.;
D、They want their own voices to be heard in the group work.