Social perception is influenced by three activities in the process of forming and maintaining our social identity which are:

A) attribution, acceptance, and modification.
B) categorization, homogenization, and differentiation.
C) perception, personality, and attitude.
D) fundamental attribution, self-serving attribution, and social identity.
E) agreeableness, conscientiousness, and openness to experience.

The three activities in the process of forming and maintaining our social identity are categorization (grouping people into categories based on certain characteristics), homogenization (assuming those within a category are similar to each other), and differentiation (viewing those outside of the category as different from oneself). These processes influence social perception by shaping how we view and interact with others based on their group membership.