As president, Warren G. Harding promised America:
O A. A great society
O B. A new birth of freedom
O C. A new deal
O D. A return to normalcy

D.

Explanation:

Harding's promise was to restore the United States' pre-war mentality, without the thought of war tainting the minds of the American people. Harding's campaign promised a return to "normalcy," rejecting the activism of Theodore Roosevelts.

supplies had to travel a long distance across water on ships that were often attacked, so they did not reach europe