新prep cr 86 求解。。。谢了。。。

Which of the following most logically completes the passage? Concerned about the financial well-being of its elderly citizens, the government of Runagia decided two years ago to increase by 20 percent the government-provided pension paid to all Runagians over 65. Inflation in the intervening period has been negligible, and the increase has been duly 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

各位大侠。。。e项是说孩子们补充老人们的收入到他们可以有个舒服的生活。。。解释里面说

E选项说老人的孩子们补充老年人的收入，一旦政府补助了，他们就会撤资，所以老年人生活没变好

不明白了。。。求解释。。谢谢