Participation of educated groups in Nazi crimes challenges which belief?

Correct answer: Education always guarantees morality

The direct answer is A: education does not always guarantee morality. The participation of doctors, lawyers, administrators and other educated people in Nazi crimes shows that intelligence and professional training can be used for harm when ethical judgment is abandoned. Step by step: education provides information and skills; a person may still accept prejudice or obey an unjust ideology; expertise can then help organise discrimination, persecution and killing; therefore moral courage and respect for human dignity are also necessary. B is wrong because the question is about education and morality, not how historians use sources. C is wrong because propaganda influencing people is a separate, true idea, but it is not the belief challenged here. D is wrong because repressive law is another lesson, not the belief asked about. Memory cue: “Knowledge is power; ethics decides its direction.”