By the time American troops entered World War 1 the Allies were exhausted after years of fighting. The correct option among all the options that are given in the question is the third option or option "c". The entry of Americans in the war boosted the morale of the Allied army. I hope the answer comes to your help.
Answer:
B, becaus Clara Barton was a nurse in the civil war
It limited royal authority and said that the king was not above the law. It also was the start of Parliment
