President abraham lincoln is an important symbol in this world war i poster because he a) was president at the time of the war. b) predicted that world war i would occur. c) stood up for equality for different races. eliminate d) led a regiment of african-american troops.

C)stood up for equality for different races.

C) stood up for equality for different races.

Explanation: This poster shows African Americans fending off enemy soldiers. It is meant to show how important African Americans were to the Allies’ success. President Lincoln appears as a symbol in the poster because he stood up for equality for different races.