How did the old woman in the house make montag’s job more difficult

This what happened with how the old woman  in the house made Montag’s job more difficult. Montag's depression reached to a critical point after he saw the burning of an old woman, who willingly embraces death when the firemen come to burn her books. His psychosomatic illness, a significant mix of chills and fever, fails to fool his employer, who easily identifies the cause of Montag's malaise. Hope this answer helps.

Answer choices for this question?

The correct answer is c