11.
Why was Colonel Billy Mitchell court-martialed and thrown out of the U.S. Army?
A.
He gave secret information to the Germans about the U.S. Army's latest tank designs.
B.
He claimed that it was impossible for an airplane to sink a battleship with bombs.
C.
He insisted that aircraft would be decisive in any future naval war.
D.
He stated publicly that Japan would never attack the United States.