136. Because postage rates are rising, Home Decorator magazine plans to maximize its profits by reducing by one-half the number of issues it publishes each year. The quality of articles, the number of articles published per year, and the subscription price will not change. Market research shows that neither subscribers nor advertisers will be lost if the magazine's plan is instituted.
Which of the following, if true, provides the strongest evidence that the magazine's profits are likely to decline if the plan is instituted?
A. With the new postage rates, a typical issue under the proposed plan would cost about one-third more than a typical current issue would.
D. Most of the advertisers that purchase advertising space in the magezine will continue to spend the same amount on advertising per issue as they have in the past.
答案是D。这个选项没有问题。但是看完后面的解释后，反而觉得A也是正确答案。
利润应该是收入减去成本构成的。
og: Choice A notes that mailing costs oer issue will rise by one-third; but since there will be fewer issues, total annual mailing costs will fall.
在其他因素不变只考虑A的情况下，的确总成本会下降，但发行量减半以后，订价不变，收入也会减半，为什么利润会下降呢？og的解释是行不通的。
我认为应该是这样：每份issue带来的收入是不变的，而成本增加以后，每份issue的利润自然会下降，再考虑到份数减少，所以总的利润一定下降。这样分析的结果是，A也是正确答案。
哪里不对阿？求教：） | 
