题目内容：
根据下面内容，回答题 Market Research 0 Market research involves in collecting and sorting facts and opinions from specific groups
00 0f people．The purpose of research can vary from discovering the popularity of a political
34 party to assessing whether is a product needs changing or replacing．Most work in
35 consumer research involves interviewers employed by market research agencies，but
36 certain industrial and social research is carried out by any specialist agencies．Interviews
37 may be with individuals or groups and can last anything as from a few minutes to an hour
38 0r more．In some interviews，people may be asked to examine or try out products before
39 giving up their opinion．Successful interviewers tend to like meeting people and should
40 not only be shy of addressing strangers．Interviewers are usually expecled to work
41 unsupervised，organizing their own workload．Self-discipline is absolutely essential，and
42 as are motivation and enemy．There are no specific age limits for such a work，though
43 many agencies prefer to employ older applicants with experience of meeting people。
44 Market research agencies which frequently organize training，where trainees learn how
45 to recognize socio-economic groups and practice approaching to the public。
34__________
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