Read the excerpt from chapter 7 of Night.

My father had huddled near me, draped in his blanket, shoulders laden with snow. And what if he were dead, as well? I called out to him. No response. I would have screamed if I could have. He was not moving.

Suddenly, the evidence overwhelmed me: there was no longer any reason to live, any reason to fight.

Read the excerpt from chapter 2 of Night.

It took us a long time to recover from this harsh awakening. We were still trembling, and with every screech of the wheels, we felt the abyss opening beneath us. Unable to still our anguish, we tried to reassure each other.

How does the fact that Night is a memoir rather than a biography or informational text help 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.