The answer to your question would be C
The Whigs and the Democrats wanted to keep slavery out of national political discussion in order to prevent what they thought would happen and did happen: a split in the United States with one being slave states only and the other being free states only.
The french revolution did increase national pride and patriotism in france are: d. it led common people to believe that they lived in a fairer society.
the revolution is to establish a republic and overthrew the monarcy.
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All of them were famous during this part of the century, except for A. Mark Twain. He was famous during the LATE part of the 19th Century.