Many didn't like the idea of the Louisiana Purchase because it would force Native people off their land. This caused debates within the United States government. Many disagreed with westward expansion as a whole.
The correct answer is:
B. George Marshall.
George Catlett Marshall Jr. (1880–1959) raised through the United States Army to become Chief of Staff under presidents Franklin D. Roosevelt and Harry S. Truman. Then he served as Secretary of State and Secretary of Defense under Truman.
Winston Churchill lauded Marshall as the "organizer of victory" for his leadership of the Allied victory in World War II. Marshall guided the build-up of the U.S. Army from a force of little more than 200,000 in 1939 to a mobile army of more than 8 million soldiers and airmen that would fight around the globe during World War II.
Answer:The French commentator on American society in the 1830s, Alexis de Toqueville, observed that Americans are very quick to join together to promote whatever causes they favor. There was certainly evidence around him. Reforms on many issues — temperance, abolition, prison reform, women's rights, missionary work in the West — fomented groups dedicated to social improvements.