Respuesta :
Correct answer choice is :
B) The balance of power in Congress would have shifted.
Explanation:
In an attempt to maintain the stability of power in Congress between slave and free states, the Missouri Compromise was declared in 1820 indicating Missouri as a slave state and Maine as a free state. Controlled as a province of Massachusetts since 1647, the appearance of Maine as a free state was admitted to by Southern legislators in exchange for the entrance of Missouri as a slave state.