Which of the following most logically completes the passage?

Concerned about financial well-being（n.幸福，舒适）of its elderly（a.较老的）citizens, the government of Runagia decided two years ago to increase by 20 percent the government-provided pension（U.退休金）paid to all Runagians over 65.  Inflation in the intervening period has been negligible, and the increase has been duly(ad.适当，及时) received by all eligible Runagians.  Nevertheless, many of them are no better off financially than they were before the increase, in large part because ________.

A.       They rely entirely on the government pension for their income

B.       Runagian banks are so inefficient that it can take up to three weeks to cash a pension check

C.       They buy goods whose prices tend to rise especially fast in times of inflation

D.       The pension was increased when the number of elderly Runagians below the poverty level reached an all-time high

E.        In Runagia children typically supplement the income of elderly parents, but only by enough to provide them with a comfortable living

答案是E.　如何解释？　C和D为什么不可以？想不明白．

变态题呵呵

排除C（文章说：Inflation in the intervening period has been negligible）

排除D（文章说：the increase has been duly(ad.适当，及时) received by all

eligible Runagians。也就是说之后的情况是，一切到位后的情况。那么D说pension

是什么时候开始的就没有什么意思了）

E：比较变态，因为最后半句but only by enough to provide them with a

comfortable living，就是说达到一定水平后，子女有不会再提供额外的钱了，也就

是说，政府给的多，他们就给的少，只是维持到一定的水平而已。

我觉得你对E的解释是合理的,谢谢!

但是,D-The pension was increased when the number of elderly Runagians

below the poverty level reached an all-time high意思是说ension增加20%,但

是需要Pension的人数也同时达到了了一个相当高的数量,那么人均得到的Pension是

否就没有得到相应的提高,所以many of them are no better off financially than

they were before the increase.不知道我的理解是否有误?

看原文：and the increase has been duly(ad.适当，及时) received by all eligible Runagians

所有的人都得到了20％的增长，就算人再多，这些人只要符合标准，都有20％的增加。所以您的担心不是问题了