Question

Which of the following best summarizes why the Missouri Compromise needed to be replaced?

Answer 1

Members of Congress wanted to end the question of slavery in the U.S.

The U.S. wanted to sell the territory gained after the Mexican-American War to build railroads and the Missouri Compromise prevented it.

Congress decided that the people should be able to decide whether the territory gained in the Mexican-American War should be allowed to have slavery.

The territory gained after the Mexican-American War was mainly below the Missouri border and U.S. leaders believed slavery would be necessary to ensure settlement.