Who are the Tuskegee Airman?

The Tuskegee Airmen were a group of African American fighter pilots in the U.S. Army Air Corps of World War II; the U.S. Air Force did not yet exist as a separate entity. The Army had resisted using black men as pilots but, in response to a pending lawsuit, conceded to creating a segregated unit for them.

to answer this question you need to explain more

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b