新prep的逻辑题，正确答案是不是有问题？求教：

123.
                (31092-!-item-!-188;#058&005693)     (GWD 1-Q13)

In the United States, of the people who moved from one state to another when they retired, the percentage who retired to Florida has decreased by three percentage points over the past ten years.  Since many local businesses in Florida cater to迎合 retirees, this decline is likely to have a noticeably negative economic effect on these businesses.

Which of the following, if true, most seriously weakens the argument?

A. Florida attracts more people who move from one state to another when they retire than does any other state.

B. The number of people who move out of Florida to accept employment in other states has increased over the past ten years.
            无关

C. There are far more local businesses in Florida that cater to tourists than there are local businesses that cater to retirees.

D. The total number of people who retired and moved to another state for their retirement has increased significantly over the past ten years.

E. The number of people who left Florida when they retired to live in another state was greater last year than it was ten years ago.

 我选择的答案是A,正确答案是D。我觉得D没有A好，理由是：总人数增加，也不一定能使Florida的人数增加阿。而A答案说明Florida更吸引人去，比D答案更合理阿。

这道题的trick是什么？请大家指教！

这个题目显然AB结构，文章考点儿：去佛州的人数=总人数*佛州%，文章说佛州养老生意会变差，就是说实际去佛州的养老人数变少了。

佛州%下降，去佛州的人数就会下降，这个题目显然考察你是否能够分析出，暗含假设就是总人数不变。

对于这种AB结构题目的削弱题，就是找出暗含假设之后将其否定。

对于你选的A，你犯了一个经典错误，你用相对值去替换了绝对值。吸引最多的人并不代表人数会上升，故A的意思其实是没有最差，只有更差...

希望能帮上忙

对，我犯了严重逻辑错误。一经指出，以后但愿不要再犯，谢谢指点！