Why did the Nazis have Death Marches during the final months of the war?

It's to know your purpose before you read something because a purpose can:

Which best compares the authors’ purposes in silent spring and “save the redwoods”? both authors want readers to protect human rights. both authors want readers to focus on saving trees. both authors intend to entertain readers with their essays. both authors intend to convince readers of their viewpoint.

Plz which of the following is true about third-person limited point of view? it uses the word i, and one character tells the story. it uses the word you and makes the reader feel a part of the story. the narrator is not part of the story and only states the characters' actions and speech. the narrator is not part of the story but knows what one character is thinking and feeling.