Question

One reason for the German surrender in 1918 was that

a. many German soldiers were no longer willing to fight.
b. the German tactic of trench warfare was a failure.
c. the German submarine fleet had been destroyed.
d. the German blockade of France had failed.

Answer 1

One reason for the German surrender in 1918 was that many German soldiers were no longer willing to fight.

Answer 2

One reason for the German surrender in 1918 was that "a. many German soldiers were no longer willing to fight," since especially with the entrance of the US into the war it was becoming clear that the Allies would win.