What does Wiesel mean when he says that the ghettos were “ruled by delusion”?

a
The Jews in the ghetto remained delusionally optimistic despite overwhelming evidence of persecution.
b
Germany was being ruled by a cruel, barbaric, delusional dictator: Hitler
c
The Jews in the ghetto were deluded by the Nazis into thinking they would be better off once they were released back to their homes.
d
The Jews were being ruled by the Nazis’ delusion that Jews were inferior.

a. The Jews in the ghetto remained delusionally optimistic despite overwhelming evidence of persecution.