It was an extraordinarily stressful day and I just kind of broke down when I got home . After that , I slept for about 10 hours and felt about the same as when I went to bed . Rested only enough to maintain the current level , not to get any better .

Options: A). They rested enough . B). They feel maintained . C). They feel rested . D). They feel worn out .
Answer the following question: How does the narrator feel ?
D).