Thomas Jefferson tried to end... The right of men without land to vote
the practice of slavery in the state of virginia
the use of European and especially italian architecture in the united states
the right for women to vote

c

explanation:

one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.

c) troops march forward in close formation against newer, more accurate weapons