Answer:
What Jewish prayer of the dead is sung by the prisoners when they see the atrocities in Birkenau? E) Kaddish
Step-by-step explanation:
The Kaddish is a common prayer for the merit of the departed soul of one's father or mother. Many prisioners at Auschwirz-Birkenau used to sing Kaddis. There's something called "Camps Kaddish" or the "Holocaust Kaddish", a liturgical addition since the Shoah, found in many Reform and Conservative prayer books.