想通一道Prep的逻辑题，分享一下

Boyzone

87.    (31284-!-item-!-188;#058&005747)

Two years ago, the government of Runagia increased by 20 percent the government-provided pensions paid to Runagians over 65.  The aim of the increase was to stimulate the economy in the rural regions of the country, where most pension recipients live.  Statistics, however, show that there has been no increase in economic activity in those regions since then, but that there has been noticeably more spending in the urban areas.两年前，政府提高20%的养老金为了促进经济。然而数据表明，这些地区的经济活动并没有明显的上升而在城市中的花销却显著提高了。
Which of the following, if true, most helps to explain why the increase resulted in the unintended state of affairs described?

A. Until the pensions were increased, many Runagians over 65 in rural regions had been receiving support from their children who live in urban areas.   老人先前有子女支持所有花销也不错，后来有政府的养老金，这样就不用和子女要钱了，但是经济活动不变。而这样子女的钱就多起来了，这样就解释了城市的花销却多了起来。
B. The pensions were increased when the number of people below the poverty level in rural areas of Runagia reached an all-time high.
C. City-dwellers in Runagia rarely travel to rural regions of the country.
D. The Runagian postal system is so inefficient that it can take up to three weeks for pension checks to reach recipients in rural areas.
E. On average, the pensions were higher in rural than in urban areas before