How did american entry into world war i affect the allied powers?
a) it boosted their morale.
b)it gave them new weaponry.
c)it ended their battle on the eastern front.
d)it shifted the balance of power against them.

a) It boosted their morale.

The entry of the United States in the war was enthusiastically greeted by the weary Allied armies. The Americans were decisive in several victories afterwards, such as Cantigny, Chateau-Thierry and Belleau Wood. The influx of new soldiers and troops strengthened the Allies' strategic position and boosted their morale.

b

Explanation:

because it is

the correct answer is "cut spending on social programs."good luck

explanation:

hi!

your answer is d

mark me brainliest

~courtney