Feudalism began in Japan from the 12th century until the 19th century held dominant positions in society. Feudal society in Japan was control by Shogun. He came under the warrior class and considered to be a powerful ruler (prominent figure). He exercises power over vast territories. He was a military leader, who was in charge of armies, battles and a decision-maker.
The correct answer among all the other choices is C. Petroleum. Food availability would be most affected by the shortage of this energy source. I hope this answer helped you.
