Answer this correctly

why did many abolitionists refuse to support the missouri compromise?

a.
they wanted more slave states admitted to the union.
b.
the compromise removed rights that enslaved people once held.
c.
it allowed slavery to eventually expand into three more states.
d.
it gave the south more power in the senate.

The answer is C

Explanation: Many abolitionists wanted to end slavery. They typically even went to extreme solutions such as riot and protesting.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

"they had a large area of land that they owned."