Which of these was the result of the spanish-american war? a. cuba became a u. s. territory. b. the u. s. became a world power. c. puerto rico became a u. s. state. d. the philippines gained independence.

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.