According to the passage, how did pershing contribute to the allied victory? check all that apply. by allowing the aef to fight for depleted allied armies in europeby leading the aef to victory in several key battlesby dividing the aef into units to be led by allied forces in europeby insisting that the aef operate as an independent forceby the aef and allied forces defeat germany

There are three answers when you read the passage, the perishing contribute to the allied victory was by leading the AEF to victory in several key battles, by insisting that the AEF operate as an independent force and by helping the AEF and Allied forces defeat Germany. 
First was by leading the AEF to victory in several key battles
Second was by insisting that the AEF operate as an independent force
Third was by helping the AEF and Allied forces defeat Germany

Your answer is 2 because you do keep change flip when you divide fractions