_____ refers to the way individuals define themselves in terms of their group membership.

A) Social identity
B) Ethnocentrism
C) Crowdsourcing
D) Groupthink

Social identity refers to how individuals define themselves in relation to their membership in a particular social group, such as their nationality, ethnicity, religion, or profession. This can include shared attitudes, values, beliefs, and behaviors that are seen as representative of the group. Social identity can have both positive and negative effects, such as providing a sense of belonging and community, but also leading to stereotyping, discrimination, and intergroup conflict. Ethnocentrism, crowd sourcing, and groupthink are related concepts, but they refer to different aspects of group behavior and identity. Ethnocentrism is a tendency to view one's own cultural group as superior to others, while crowdsourcing is a way of generating collective knowledge or contributions from a large number of people online. Groupthink is a phenomenon of group decision-making in which members prioritize agreement and cohesion over critical evaluation and dissent.