The Nazis most likely used the death marches to hide the proof of the Holocaust. Option D is correct.
In January 1945, the Third Reich was on the brink of military defeat. As Allied forces approached Nazi camps, the SS organized “death marches” (forced evacuations) of concentration camp inmates, in part to keep large numbers of concentration camp prisoners from falling into Allied hands.
The term "death march" was probably created by concentration camp prisoners. It referred to forced marches of concentration camp prisoners over long distances under guard and in extremely harsh conditions.
