Why was the secret ballot introduced in the 1920s? to prevent recall votes from being cast
to allow voters to directly elect their US senators
to prevent voter bribery by local politicians
to allow women to vote in local elections

The secret ballot, also known as Australian ballot, is a voting method in which a voter's choices in an election or a referendum are anonymous, forestalling attempts to influence the voter by intimidation, blackmailing, and potential vote buying. The system is one means of achieving the goal of political privacy.

most drivers errors for every 20 decisions they make while driving.

explanation:

mark brainliest!