Which was proposed as part of the Wilmot Proviso? Congress would allow slavery in those territories acquired as a result of the Mexican-American War only if slavery already existed there.

The Missouri Compromise would be extended to apply to all territory acquired as a result of the Mexican-American War.

Congress would ban slavery in all territory acquired by the U. S. as a result of the Mexican-American War.

Congress would allow slavery in all territory acquired by the U. S. as a result of the Mexican-American War.