which pattern of organization is used ? Chavez died in 1993. He was 66 years old.​ 25,000 people honored his legacy by marching for more than two and a half hours to the spot where he had founded the United Farm Workers Union.He helped establish​ health-care benefits, disability​ insurance, pension​ plans, and standardized grievance procedures for farmworkers. He helped secure passage of the nation​'s first agricultural labor relations act in California in 1975. This act kept growers from firing striking workers or engaging in​ bad-faith bargaining. Thanks to his​ efforts, migrant farm laborers won a right held by all other American workers. This was the right to bargain collectively.
A.definition and example

B.comparison and contrast

C.list

D.cause and effect