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Expert help needed, Official guide for Gmat 12th edition.

Expert replies
by abhi_sagar » Wed Oct 03, 2012 8:08 am
22. Following several years of declining advertising sales, the Greenville Times reorganized its advertising sales force. Before
reorganization, the sales force was organized geographically, with some sales representatives concentrating on citycenter
businesses and others concentrating on different outlying regions. The reorganization attempted to increase the
sales representatives’ knowledge of clients’ businesses by having each sales representative deal with only one type of
industry or of retailing. After the reorganization, revenue from advertising sales increased.
In assessing whether the improvement in advertising sales can properly be attributed to the reorganization, it would be
most helpful to find out which of the following?
(A) What proportion of the total revenue of the Greenville Times is generated by advertising sales?
(B) Has the circulation of the Greenville Times increased substantially in the last two years?
(C) Among all the types of industry and retailing that use the Greenville Times as an advertising vehicle, which type
accounts for the largest proportion of the newspaper’s advertising sales?
(D) Do any clients of the sales representatives of the Greenville Times have a standing order with the Times for a fixed
amount of advertising per month?
(E) Among the advertisers in the Greenville Times, are there more types of retail business or more types of industrial
business?

B is the Correct answer according to official guide to GMAT
REASON:This statement provides another possible explanation for increased revenue of advertising sales.

The problem is that even if we observe a substantial increment in circulation of greenville times in last two years, the opening line of the paragraph says that the advertising sales has observed a declining trend.Does this mean that increase in circulation did not effect advertising sales but reorganization did? Perhaps reorganization helps its stsff to better focus on industry or of retailing.
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Source: — Critical Reasoning |

by Sapana » Wed Jan 09, 2013 9:40 am
I find this question very tough as well. But there is no other options that clearly indicates that increment in sales were because of the industry vs retail advertising rather than the previous one!
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