Red guards were made up mostly of a. americans who favored communism b. south koreans c. the gang of four d. students at the universities

danielu suge pula

explanation:

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.