The answer to this question, would most likely be C. mainly because, it was very hard decision for President Truman to drop the 5 ton bomb on hundreds of thousands of men, women, and children.
The capture of Columbia occurred February 17–18, 1865, during the Carolinas Campaign of the American Civil War. The state capital of Columbia, South Carolina, was captured by Union forces under Maj. Gen. William T. Sherman and much of the city was burned.
Martin Luther, John Calvin and other Protestant reformers opposed the Roman Catholic Church beliefs. Which then lead to the protestants to separate themselves from the Roman Catholic Church by creating their own branch under Christianity called Protestantism.
Sorry if too late.