Answer:
The Mongols more specifically the mughal empire whose leader was Mongol
The Boeing B-29 was used by the United States Air Force towards the end of World War II, as well as in the Korean War. They were only produced from 1943-1946, right at the end of the war. However, they were used by the USAF and Royal Air Force until 1954. The entire line (including the revised version, the B-50) was retired in 1960.
Therefore, the answer is A, since production of the plane stopped in 1946, one year after the end of WWII.
Interestingly, the central government ventured in to enable specialists in a work to debate. President Theodore Roosevelt wound up plainly included and set up a reality discovering commission that suspended the strike. The strike never continued, as the mine workers got a 10% wage increment and diminished workdays from ten to nine hours; the proprietors got a higher cost for coal and did not perceive the exchange union as a dealing operator. It was the primary work debate in which the US government mediated as an unbiased authority.