Correct answer: C. George Whitefield
George Whitefield (1714-1770) was one of the early leaders of the Methodist movement in England, and also came and preached in the American colonies. During his career, he preached tens of thousands of sermons, with millions of people having heard him preach. Ben Franklin was one of those who heard him preach and was impressed. Christianity.com reports that Franklin offered to print Whitefield's sermons and provided housing to Whitefield in Philadelphia above his shop on Market Street. Franklin wasn't a full "convert" to Whitefield's religious perspective, but he did have great respect for the work Whitefield did.
Any group looking to lower costs by encouraging competition would likely support free trade agreements. Free trade agreements encourage competition in markets.
C. peace and prosperity was the roman pax