Question

1. margaret sanger is best known for advocating

civil rights legislation
prohibition laws
birth control and reproductive rights
labor union reforms

Explanation:

Margaret Sanger was a key figure in promoting birth control and reproductive rights, working to make contraception accessible and advocating for women's reproductive autonomy. The other options (civil rights legislation, prohibition laws, labor union reforms) are not associated with her main work.

Answer:

C. Birth control and reproductive rights