Prep一道题不明白

luyinan

Economist:  On average, the emergency treatment for an elderly person for injuries resulting from a fall costs $11,000.  A new therapeutic program can significantly reduce an elderly person's chances of falling.  Though obviously desirable for many reasons, this treatment program will cost $12,500 and thus cannot be justified.

 

Which of the following, if true, most seriously undermines the conclusion of the argument?

 

(A) Among elderly people who had followed the program for only a few months, the number of serious falls reported was higher than it was for people who had followed the program for its recommended minimum length of one year.

(B) Falls resulting in serious injuries are less common among elderly people living in nursing homes than they are among elderly people who live alone at home.

(C) A frequent result of injuries sustained in falls is long-term pain, medication for which is not counted among the average per-person costs of emergency treatment for elderly people's injuries from such falls.

(D) The new therapeutic program focuses on therapies other than medication, since overmedication can cause disorientation and hence increase the likelihood that an elderly person will have a serious fall.

(E) A significant portion of the cost of the new therapeutic program is represented by regular visits by health care professionals, the costs of which tend to increase more rapidly than do those of other elements of the program.

请问为什么选 C 呀          谢谢

bjleo

原文说老人跌倒costs $11,000, treatment program will cost $12,500 and thus cannot be justified 就是说由于预防的成本比治疗成本高所以不能justify

C说fall会造成长期病痛 而治疗这个长期病痛的cost是不包含在题干说的那个cost里的 所以实际由fall造成的cost远不止 $11,000 削弱推论

luyinan

谢谢