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.
The role made a wave in options about the candidates because Kennedy was cool calm an collected meanwhile his opponent was sweating and this made people feel as though they could trust Kennedy with the country.
He inherited the principality of Moscow