Gregor is the family's sole breadwinner. His father's company went bankrupt five years ago. Working as a traveling salesperson is helping Gregor pay off his debt.
Correct option is D.
Gregor's family used to treat him nicely and care for him before his metamorphosis. However, their attitude toward Gregor shifted as soon as they learned of his transformation. They began to mistreat him, and Gregor began to despise himself for who he had become.
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