he United States Postal Service (USPS; also known as the Post Office, U.S. Mail, or Postal Service) is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the United States, including its insular areas and associated states.
Federal
Answer:
B
Explanation:
When there is not enough the demand will appear greater.
It showed that African American soldiers contributed greatly to the war effort.
I think the answer would be C, correct me if I’m wrong, I’m pretty sure it’s that