During the Progressive Era, how did the government work to reduce corruption during elections?

(1 point)
Responses

It adopted the secret ballot rather than having people vote openly in front of others.
It adopted the secret ballot rather than having people vote openly in front of others.

It outlawed unions, thereby reducing their influences over elections.
It outlawed unions, thereby reducing their influences over elections.

It made it illegal for carpetbaggers to hold office in South Carolina.
It made it illegal for carpetbaggers to hold office in South Carolina.

It required all voters to hold a high school diploma.
It required all voters to hold a high school diploma.

It implemented campaign finance laws to limit the influence of wealthy individuals and corporations on elections.