Answer:
A. Babylonian King, Nebuchadnezzar
Explanation:
Babylonian King Nebuchadnezzar who lived around 600 B.C was the King who initiated the idea of providing incentive to laborers. An incentive is something that is given to motivate a person to do something or to become more productive at what he does.
Back then, laborers who wove clothes wear rewarded with food. Those who produced more clothes were rewarded with more food. This served as an incentive to the workers to work harder if they were to receive more rewards.
Karl Marx once said; "I am not a Marxist!". He also once called his adherents "useful idiots". Karl Marx presented a strategy in communism much of which can be found in his book, Das Kapital.
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Russia I believe. They beat Russia in the Russo-Japanese war. Check out "Feature History" youtube channel for more info. Just type Russo-Japanese war into youtube and it should pop up. Hope this helps.