单项选择题

Most consumers in China"s cities would rather "suffer silently" over grievances than stand up for their rights, a survey showed Friday.
A two-week poll conducted showed that about 70 percent were only partly familiar with the law bolstering (支持) protection of consumers" rights and interests implemented two years ago. Twenty percent said they had heard over the ages in a number of quite peculiar forms but did not know the content, and the remaining 10 percent knew nothing about the law at all. Those consumers surveyed lost on average 25.85 yuan a month in 1995 due to shoddy quality, fake goods, and other problems. More significant was people"s meekness (逆来顺受) in accepting bad service without complaining. More than 60 percent of those surveyed said they would rather suffer silently rather than stand up for their rights. This was particularly the case among the elderly and people with higher levels of education.
Those consumers said that they rather sustained an occasional loss than paid the transportation fares necessary to pick up invoice (发票) and find a quality inspection department for an appraisal.
They added: "Even if you go to court and win the case, the best decision you"ll receive will be returning double the amount lost. " So the situation of consumer protection in China needs improvement. persons who would rather suffer silently are ______.

A.teachers, engineers and the well-educated
B.workers, peasants and students
C.those who are stricken in years
D.both A and C