What was the outcome of the Twelfth Amendment on the Electoral College?

The Twelfth Amendment changed how electors cast their ballots: each elector casts one vote for president and a separate vote for vice president. Before the amendment, electors cast two votes for president, which could lead to ties between presidential and vice-presidential candidates. So the correct choice is “Each elector would cast two votes, one for president and one for vice president.”

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