Answer:C. EVENTUALLY
Explanation: An Adverb is a word used to describe,modify or qualify a verb, adjective,clause etc. It helps to give a better and clearer meaning to a verb,an adjective,clause etc.
With an adverb attached to any of the parts of speech it make it easier to understand and comprehend.
EVENTUALLY in this situation is an adverb as it helps to qualify the word SENT. Other examples of adverb includes CAREFULLY,AFTER, ACTUALLY, EXTREMELY, ABRUPTLY etc.
Lauren walked slowly, but Caroline walked quickly.
"But" is the conjunction, and "slowly" and "quickly" are the adverbs.
A makes the most sense. here's why: nobody cared if there was a balance of outlawed and allowed slavery states. so b is out. people might have cared about c but not as much because maintaining a balance in votes was more important. There was no need for a balance in cotton and iron. So b c and d all have to do with slavery and a is the outcast so the answer would have to be A.