What were key factors in creating a strong wartime economy?Select one of the options below as your answer: A. new technologies, new methodologies, full labor force, government direction B. big business, immigration, government contracts, women joining the work force C. propaganda campaign, WPB, wage freezes, African-American armed forces D. TVA, wage freezes, full employment, women in the armed forces E. government contracts, OWI, big business, new technologies