Which of the Following Describes U

Which of the following describes U.S. policy toward chemical weapons?

A) The U.S. signed but did not ratify the 1925 Geneva Protocol outlawing the use of chemical weapons until 1974
B) The U.S. never had a chemical weapons program
C) . The U.S. agreed not to use chemical weapons in a bilateral arms control treaty with the Soviet Union
D) The U.S. never agreed to outlaw the use of chemical weapons.