单项选择题

Qusetions 26-30 are based on the following passage:
  In a global survey released in 2012,half the responders admitted to buying things they really did not need.Two thirds are worried that consumers are buying too much.Such soncerns may be justified.Many consumers have become trapped in debt.Researchers say that instead of making us more satisfied,high levels of consumption may lead to greater stress and unhappiness!
  As consumers,we are subjectede to a great amount of marketing.What is the goal of marketers?To turn wants inot needs.Marketers know that consumer behavior is driven largely by emotion.So adevertisments and the shopping experience tiself are designed for maximum emotional appeal.
  When you ask a consumer:Why do you buy so much?He or she may answer:I want to improve my quality of life.It is natural that people want a better life.Advertisers bombarb us with messages that all of our desires--better health,security,relief from stress,and closer relationships--can be achieved by making the right purchases.
  But actually,as our number of possessions increases,our quality of life can actually decease.Additional time and money are needed to care for more material things.Stress levels rise because of pressure from debt,and there is less time for family and friends.So you should protect yourself from becoming a victim of clever marketers.You should put emotion aside,and compare marketing promises with reality.

According to the author,the goal of marketers is to（）.

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