一道纠结许久始终搞不明白的大全逻辑题

adasuying2004

government agency that reimburses its clients for bills they have paid for medical care has had this year’s budget cut. To save money without cutting reimbursements or otherwise harming clients financially, it plans to delay reimbursements to clients for forty days, thereby earning $180 million per year in interest on the reimbursement money.
Which of the following, if true, is the best criticism of the agency’s plan?
(A) Hospitals and physicians typically hold patients responsible for the ultimate payment of their bills.
(B) The agency cannot save money by cutting staff because it is already understaffed.
(C) Some clients borrow money to pay their medical bills; they will pay forty extra days of interest on these loans.
(D) Some clients pay their medical bills immediately, but they often take more than forty days to file with the agency for reimbursement.
(E) The agency’s budget was cut by more than $180 million last year.

此题选C，不懂啊。client自个借钱不会影响公司的收入啊。为啥不是D呢？

sdcar2010

Pay attention to this sentence: To save money without cutting reimbursements or otherwise harming clients financially . . .

C) points out that the agency's plan might harm some clients financially since they have to pay EXTRA interests on their loans.