In Franz Kafka’s The Metamorphosis, after Gregor turns into a giant insect, he realizes his sister, Grete, can’t stand to look at him. He hides from his sister and stays under a bedsheet. What does this act suggest about Gregor?

A. He wants to hide and then surprise his sister.
B. He is considerate and thoughtful toward others.
C. He has only one human possession, the bedsheet.
D. He can’t bear to look at his sister anymore.