I believe the answer is A!
The American soldiers were rested and brought energy to the Allies. The spirit of the Allied soldiers improved significantly. Unites States industries produced much-needed supplies for the Allies. Military equipment and food were provided to assist the Allies in their fight against the Central Powers.
Ethics is important in philosophy because its teaches us the ought of an action. Ethical questions includes why should the good be done instead of its opposite.
Hope i helped ! :)
