It 's not because it 's post - apocalyptic because that 's what drew me to it . Ordinarily , I would not keep reading such a depressing book . McCarthy did a excellent job of taking me from one emotional extreme to the other , however .
According to the above context, choose the best option to answer the following question.
Question: What may the author achieve with the book ?
Options:
A. None of the above choices .
B. Every page in it made you feel nothing but sadness .
C. The events that caused the apocalypse were detailed excellently .
D. It caused the reader 's feeling to go through a rollercoaster .


D