Final answer:
Chaya works for b) The ZOB (Jewish Combat Organization) in the book Resistance, an organization that played a central role in the Warsaw Ghetto Uprising during World War II.
Step-by-step explanation:
In the book Resistance, Chaya works for b) The ZOB, which stands for the Jewish Combat Organization.
The ZOB was one of the main underground resistance organizations during World War II, formed to defend against the Nazis in the ghettos, particularly in Warsaw.
The heroic but tragic resistance in the Warsaw ghetto is one of the most notable examples of the Jewish armed resistance during the Holocaust, culminating in the Warsaw Ghetto Uprising of 1943.