Answer:
B). The Nazi killing of Jews.
Step-by-step explanation:
As per the given quote from Haidar Abd El-Shafi's 'Palestinian Delegation to the Madrid Peace Conference, 1991, the speaker attributed the ignoring of his people's suffering to 'the Nazi killing the Jews'. He says that these killings inflicted years of pain and suffering to them and hence, they yearn for peace for a long time. Their very identity was being disregarded and suppressed due to this 'political expedience' that have led the Palestinians to struggle for their present existence and their rights which were subsumed by the 'inimical injustice and past tragedies'. Thus, option B would be the correct answer.