How Does the Center for Science in the Public Interest

How does the Center for Science in the Public Interest (CSPI) ,a public interest group,act as a check on the market-directed economy?

A) It exposes firms that make false or exaggerated product claims.
B) It acts as a forum for consumers to report product dissatisfaction reviews.
C) It lets consumers easily access environmental product information and reviews.
D) It is a consumer watchdog group that pressures food companies to make healthier products.
E) It lets technology firms play by the socially accepted rules of the game.