How does the fact that night is a memoir rather than a biography or informational text the author achieve his purpose in this excerpt?
the author is able to present an objective account of the situation.
the author is able to personalize the event by using the words we and us.
the author is able to give only the facts so that the reader understands the situation.
the author is able to rely on the denotative meanings of words to tell about the event.

The author is able to personalize the event by using the words we and us.

Explanation:

One of the advantages of Night is that the text is a memoir rather than a biography or an informational text. This allows the author to achieve things that would be impossible with a different type of text. For example, the author is able to personalize the event by using the words we and us. Moreover, because this is a personal account, the author does not need to be objective. Instead, he is able to tell us about his life in the way in which he experienced it.