A proposed change to federal income tax laws would eliminate deductions from taxable income for donations a taxpayer has made to charitable and educational institutions. If this change were adopted, wealthy individuals would no longer be permitted such deductions. Therefore, many charitable and educational institutions would have to reduce services, and some would have to close their doors.
The argument above assumes which of the following?
(A) Without the incentives offered by federal income tax laws, at least some wealthy individuals would not donate as much money to charitable and educational institutions as they otherwise would have.
(B) Money contributed by individuals who make their donations because of provisions in the federal tax laws provides the only source of funding for many charitable and educational institutions.
(C) The primary reason for not adopting the proposed change in the federal income tax laws cited above is to protect wealthy individuals from having to pay higher taxes.
(D) Wealthy individuals who donate money to charitable and educational institutions are the only individuals who donate money to such institutions.
(E) Income tax laws should be changed to make donations to charitable and educational institutions the only permissible deductions from taxable income.
正確答案是(A)，我想請問為什麼(D)是不對的呢?
如果charitable and educational institutions只有有錢人捐贈，那麼現在稅的扣抵額被取消了，則有錢人不再捐贈了，所以推論出題目的結論：Therefore, many charitable and educational institutions would have to reduce services, and some would have to close their doors.
這樣的想法不對嗎?
如果是我的理解錯誤，也麻煩各位先進可以為我指導一下，謝謝
