Upon waking, the youth felt he was in the house of the A) somber B) sullen C) tortured D) dead

Your answer would be D) dead. See the following passage from the book:

"He believed for an instant that he was in the house of the dead, and he did not dare to move lest these corpses start up, squalling and squawking. In a second, however, he achieved his proper mind. He swore a complicated oath at himself. He saw that this somber picture was not a fact of the present, but a mere prophecy."

That would be D.