Middle-management men flee city and job because __

单项选择题

In our society the razor of necessity cuts close. You must make a buck to survive the day. You must work to. make a buck. The job is often a chore, rarely a delight. No matter how demeaning the task, no matter how it dulls the senses or breaks the spirit, one must work. Lately there has been a questioning of this "work ethic", especially by the young. Strangely enough, it has touched off profound grievances in others hitherto silent and anonymous.
Unexpected precincts are being heard from in a show of discontent by blue collar and white. On the evening bus the tense, pinched faces of young file clerks and elderly secretaries tell us more than we care to know. On the expressways middle-management men pose without grace behind their wheels, as they flee city and job.
In all, there is more than a slight ache. And there dangles the impertinent question: Should there not be another increment, earned though not yet received, to one’s daily work—an acknowledgment of a man’s being In fact, what all of us are looking for is a calling, not just a job. Jobs alone are not being enough for people.

Middle-management men flee city and job because ______.

A．they have lost their grace
B．they are tired by the long day’s work
C．they don’t want to see the tense and pinched faces of their clerks and secretaries
D．they are frightened by the profound grievances shown by the young people