What argument did la follette use to show that primary elections are the foundation of government in a republic?

Robert La Follette established a primary election arguing that voters had the right to elect their candidates. La Follette represented the Progressive Movement of the United States and was governor of Wisconsin. He also wanted to have more competition within the political parties when choosing their candidates.      

the answer is c. hope is

19th amendment granted women the right to vote. the 19th amendment guarantees all american women the right to vote.