The proposition that stated that slavery should be prohibited from all lands that could be acquired from Mexico was _____________ .

The Wilmot Proviso proposed banning slavery in any territory acquired from Mexico after the Mexican-American War. That matches “the Wilmot Proviso,” which is choice C. The Compromise of 1850 and the Kansas-Nebraska Act addressed slavery in different ways and were not this proposal.

AI-written and checked against the verified answer.