I think the answer D makes the most sense.
During the war, the EXECUTIVE powers of the federal government were expanded. At Andersonsville, confederate troops shot to death more than 200 African-American prisoners as they pleaded for their lives. In 1863, the CONFEDERACY instituted the first income tax, taking a specified percentage of an individual's income.
The greatest advantage of United States in world war II was its ability to rapidly transition from peace to war and mass produce weapons and war equipment at a colossal scale. This was so effective that the USA was able to make up for time lost, and the nation was able to effectively train the necessary forces and then exert a massive material superiority.
America was able to build up an air force that came to dominate the skies, and with this air superiority, it was all but over for the enemy, the Axis forces.
The atomic number is the same as the proton number, so the answer would be 10.
<span>He alleged that the US State Department had been infiltrated by communists as had Hollywood and other American institutions. This created a paranoic attitude that America was being systematically brought down from within by communists who were trying to take over the world. Consequently many American politicians argued for a stronger line to be taken on communism.</span>
