Which of these was a result of the Twelfth Amendment to the U.S. Constitution? A. The number of judges on the Supreme Court would stay the same. B. The Electoral College was no longer needed to choose a president. C. The president and vice president would run together in elections. D. Each state would have an equal number of senators in Congress.

## Step 1<br />The Twelfth Amendment to the U.S. Constitution, ratified in 1804, brought significant changes to the way the U.S. presidential elections were conducted. Prior to this amendment, the candidate who received the second highest number of votes in the Electoral College would become the vice president. This amendment changed the process, requiring separate votes for president and vice president.<br /><br />## Step 2<br />Option A is incorrect because it pertains to the Supreme Court, which is not related to the Twelfth Amendment. The number of judges on the Supreme Court is governed by other constitutional provisions and statutes, not the Twelfth Amendment.<br /><br />## Step 3<br />Option B is also incorrect. The Electoral College continues to be an essential part of the U.S. presidential election process. The Twelfth Amendment modified its function but did not abolish it.<br /><br />## Step 4<br />Option C is correct. The Twelfth Amendment established the practice of presidential and vice-presidential candidates running on the same party ticket. This change was intended to prevent the kind of tie in the Electoral College that occurred in the 1800 election, which the amendment was partly designed to address.<br /><br />## Step 5<br />Option D is incorrect because it refers to the Great Compromise (or the Connecticut Compromise) of 1787, which established the bicameral legislature in Congress, with the Senate having equal representation from each state and the House of Representatives having representation based on population. This is not related to the Twelfth Amendment.