Order of importance
The first thing on the list is the permission slip. A student would not be allowed to attend the field trip without the permission slip. The second thing on the list is a lunch. Food is important to have, but not essential for the field trip. Even less important is the money for souvenirs. This would definitely be considered an optional item for the field trip.
Answer:
Art's stepmother and his father's friends were all Holocaust survivors.
Explanation:
"Maus" is a graphic novel and a historical, biographical account of Art Spiegelman's father. Art's father was a Holocaust survivor. In Maus, Art writes about the experience of his father during the Holocaust.
After Art's real mother committed su-i-c-i-de, his father remarried Mala, another Holocaust survivor. In chapter one of the book, "The Sheik," Art remarks that the commonality shared between his stepmother and his father's friends is that they all are Holocaust survivors.