单项选择题

Passage Three Questions 71 to 75 are based on the following passage: There is probably no sphere of human activity in which our values and life styles are reflected more vividly than they are in the clothes that we choose to wear. The dress of an individual is a kind of “sign language” that communicates a complex set of information and is usually the basis on which immediate impressions are formed. Traditionally, women cared much about their clothes, while men took pride in the fact that they were completely lacking in clothes consciousness. This type of American culture is gradually changing as men’s dress takes on greater variety and color. Even as early as 1995, a research in Michigan revealed that men attached rather high importance to the value of clothing in daily life. White-collar workers in particular viewed dress as a symbol of control, which could be used to impress or influence others, especially in the work situation. The white-collar worker was described as extremely concerned about the impression his clothing made on his superiors. Although blue-collar workers were less aware that they might be judged on the basis of their clothing, they recognized that they would be laughed at by their fellow workers if they were any different from the accepted pattern of dress. Since that time, of course, the patterns have changed: the typical office worker may now be wearing the blue shirt, and laborer a white shirt; but the importance of dress has not decreased. Other investigators in recent years have helped to establish its significance in the lives of individuals at various age levels in different social and economic groups. The passage mainly suggests that __________.