What risks did non-Jews experience if they aided the hidden

Killed or punished

Explanation:

Jews in hiding and their protectors risked severe punishment if captured. In much of German-occupied eastern Europe, such activities were deemed capital offenses. This September 1942 German poster, issued during mass deportations to the Treblinka killing center, threatens death to anyone aiding Jews who fled the Warsaw ghetto.

for this, you need to remember something significant in your own life, for example, if you were bullied when you were younger, you can mention your memories on this and touch on how such treatment can harm other kids your age either physically or mentally. (racism, car crashes, a parent in the hospital are all very good subjects, think hard on it! )

hope i ! : )

the answer should be d) he was one of those young thousands who greeted the war with a certain amount of relief, welcoming the liberation from webs of tangled emotion" since it is the best option because it shows his desire to free himself. 

hope this answer you! have a great day.