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: 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.
B: 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.
C: 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.
D: 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.
Choose A, B, C or D as your solution.
D