a. henry clay's proposal meant to keep the number of slaves states and free states equal
b. a failed law meant to ban slavery in areas won during the Mexican-American War.
c. the idea that the people have the right to create their government.
d. founded in Buffalo, the main goal was to keep slavery out of the western territories.
The correct answer is option B: a failed law meant to ban slavery in areas won during the Mexican-American War. The Wilmot Proviso was introduced in 1846 by Democratic Congressman David Wilmot. It aimed to prohibit slavery in any new territories acquired as a result of the Mexican-American War. The Proviso passed in the House of Representatives but failed to pass in the Senate, ultimately leading to the expansion of the debate over slavery into the western territories.
