Several sources of labor were tried before african slavery became popular in the american south. which of the following was one of the main reasons for the popularity of african slavery?
a. using convict labor was seen as an immoral, uncivilized practice.
b. white people could not withstand working in the hot southern climate.
c. there were not enough native americans for the amount of work to be done.
d. the cost of a white man's labor for 10 years could buy an african for life.

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation:

d) eastern business owners and former federalists