What benefits did these clauses give the allies (war guilt clauses)

they added the war guilt provision to force germany and belgians to consent. (more info below)

Explanation:

The War Guilt Provision was inserted in order to force the French and Belgians to consent and limit the amount of money that Germany should have to spend to cover for the harm done by the battle. The War Guilt Provision was inserted in order to force the French and Belgians to consent and limit the amount of money that Germany should have to spend to cover for the harm done by the battle. The article was seen as a concession by the negotiators to the Germans.

hope this helped!

i think your answer there is c