The correct answer is A: "He convinced the British Parliament to send more men and supplies to the colonies in North America".
William Pitt (1708-1778) was a British statesman who became leader of the British goverment twice during the 18th century. He was member of the English Cabinet during the Seven Years War or French and Indian War. He was devoted of achieving the victory against the French, also consolidating the international dominant position of Great Britian because of their participation in the conflict.