Question

how did the united states contribute to the allied victory? check all that apply. by providing large numbers of reinforcements by supporting the last major allied offensive by boosting the morale of allied troops

Explanation:

The US provided a large - number of fresh troops as reinforcements which strengthened the Allied forces. It also played a crucial role in the last major Allied offensive, contributing to the final push for victory. And the arrival of American troops boosted the morale of the existing Allied troops.

Answer:

By providing large numbers of reinforcements
By supporting the last major allied offensive
By boosting the morale of Allied troops