Explanation:
because there was a deffulcity of wall which is too serious cases it is a systematic occured
The correct answer is letter C
The American Civil War, was an armed conflict between the southern and northern states of the United States. The conflict began on April 12, 1861 and ended only on June 22, 1865. The war came after the tense atmosphere created by the 1860 elections, which elected President Abraham Lincoln - representative of the North.
