Which of the following can best explain the sentence "…having a fixed workweek at all is becoming a bit of a luxury" in the paragraph next to the last?（ ）
A.正确答案CPeople cannot afford to have a fixed workweek.
B.It's not worthwhile to have a fixed work schedule.
C.It's difficult to get a job with a fixed work schedule.
D.People cannot make a good living by having a fixed job.
