Businesses frequently use customer surveys in an attempt to improve sales and increase profits. However, a recent study of the effectiveness of these surveys found that among a group of businesses that sold similar products, profits declined in most of the businesses that used surveys during the course of the study but not in most of the businesses that did not use any surveys during the course of the study.
Which one of the following, if true, most helps to explain why the profits of businesses that did not use customer surveys did not decline while the profits of those that used surveys did decline?
(A) When one business increases its profits, its competitors often report a decline in profits. - WRONG. As bland as it can get. No explanation offered.
(B) Some businesses routinely use customer surveys. - WRONG. So what!!. No impact on the passage.
(C) Most businesses of the kind included in the study generally administer customer surveys only as a response to complaints by customers. - CORRECT. We have our bad one. So they normally don't use those surveys to know about the complaints and do nothing about them.
(D) Customers who complete surveys do not always respond accurately to all the questions on the survey. - WRONG. Points out the opposite half of surveys when it should have given details of first half i.e. why businesses who used surveys had profits drop.
(E) Some of the businesses included in the study did not analyze the results of the customer surveys they conducted. - WRONG. Yes, that's the reason but did that impact the sales and profits. Needs further assumption to make is countable.
We need to find the bad among the worst four choices. POE helps instead of chosing the best.
Answer C.