The Allies engaged in propaganda efforts overseas to inspire people to support the Allied war effort. Option A is correct.
Allied powers, also refered to as Allies, were those countries allied against the Central Powers (Germany, Austria-Hungary, and Turkey) in World War I or to the Axis powers (Germany, Italy, and Japan) in World War II.
The most significant Allied powers in World War I were Great Britain (and the British Empire), France, and the Russian Empire.
