What is the significance of the prisoners cleaning their barracks just one hour before evacuation?

Question

a. The prisoners wanted to hide the evidence.
b. The kapo in charge of their barracks was unusually cruel and ruthless.
c. It was yet another cruel insult they felt from God.
d. Even in their darkest moments, the prisoners attempt to assert their humanity

Answer 1

d. Even in their darkest moments, the prisoners attempt to assert their humanity