The Great Compromise allowed for? A. states above Missouri to be free of slavery, and states below to be open to it.

B. California to join the Union as a free state and a fugitive slave law to go into effect.

C. two legislatures, one with an equal number of votes for every state, and one determined by proportional representation.

D. three fifths of each slave to be counted for population purposes.

C. two legislatures, one with an equal number of votes for every state, and one determined by proportional representation.

Explanation:

The Connecticut Compromise, which is also known as the Great Compromise is an agreement that was reached between small and large American states during the Constitutional Convention in 1787 about he the people would be represented in the legislature.

This Compromise brought about a bicameral legislature where the upper house would have equal representation and the lower house will have representation based on a states' population.

Therefore, the correct answer is option C.