Answer:
A. To show how the United States failed to act on behalf of the Jews during WWII.
Step-by-step explanation:
The MS St. Louis was a German ship that was carrying more than 900 Jewish refugees from Nazi Germany who were trying to escape the Holocaust. The ship was rejected by the United States as well as other countries, until it eventually went back to Europe. Wiesel mentions this incident as a way to show how the United States failed to help the Jews during WWII.