What did Alvin York do to receive the Congressional Medal of Honor?

a. York led the 369th infantry regiment of African Americans in the Meuse-Argonne campaign.

b. York fought along with the French at the Second Battle of the Marne and in the battle of Belleau Wood.

c. York destroyed several German machine-gun nests and charged a German position with only a pistol.

c. York destroyed several German machine-gun nests and charged a German position with only a pistol.