Which English word describes a person who supports a cause publicly?

• A. activist
• B. ally
• C. observer
• D. critic

Answer: (A)

The main concept is naming someone who publicly supports a cause. An activist is someone who takes active, public steps to promote a goal—organizing events, marching, campaigning, lobbying, or spreading the message to influence policy or opinion. This visible, action-oriented involvement sets an activist apart from someone who merely agrees in private. An ally supports a cause, but not always in a way that is publicly active; an observer is someone who watches rather than participates; a critic focuses on evaluating or opposing rather than publicly championing. So the term that best captures someone who supports a cause publicly through active engagement is activist.