Sentence Analysis

The sentence provides the original aim of Medicare. The sentence seems to say that the aim was to prevent a catastrophic illness from financially destroying elderly patients.
The sentence has the following problems:
1. As is, the sentence means that the law, Medicare, was aimed at preventing a catastrophic illness – this doesn’t make much sense. How can a law prevent people from suffering catastrophic illnesses?
2. The modification of “prevention” by “from financially destroying elderly patients” doesn’t make sense since “prevention from financially destroying patients” doesn’t make sense.
Option Analysis
A.
at the prevention of a catastrophic illness from financially destroying elderly patients Incorrect. For the reasons mentioned above.
B.
at being a preventive against catastrophic illness financially destroying elderly patientsIncorrect. For the following reasons:
1. The phrase “aimed at being a preventive against illness” is sufficiently awkward. For example, we don’t say “This protest is aimed at being a demonstrator for the injustice”; we say “This protest is aimed at demonstrating the injustice”.
2. In this option, “financially destroying elderly patients” is a verb-ing modifier for the “illness”. Thus, the option means that the law was aimed at preventing some kind of illness. What kind of illnesses? The kind of illnesses that are financially destroying elderly patients. Neither of these aspects – the law aiming at preventing illnesses, and preventing illnesses that are currently financially destroying elderly patients – makes sense.
C.
at preventing a catastrophic illness from financially destroying the elderly patient Correct. This option says that the law was aimed at preventing x from doing y i.e. the aim was that x should not be able to do y. In other words, the aim was that a catastrophic illness should not be able to financially destroy elderly patients. That makes a lot of sense. Financial aid could be provided to elderly people who are suffering from a catastrophic illness so that they don’t get financially destroyed.
D.
to prevent a catastrophic illness financially destroying an elderly patient Incorrect. This option has the second error of option B.
E.
to prevent elderly patients being financially destroyed by a catastrophic illnessIncorrect. This option says that the law is trying to prevent elderly patients! Doesn’t make sense. Also, “being financially destroyed” is a verb-ing modifier for “patients”, meaning that we are talking about patients that are currently being destroyed by a catastrophic illness. Again, doesn’t make sense.
Please note that while the official explanation says that “aimed to” is incorrect, this use is quite common in credible publications such as WSJ.com and Nytimes.com. Thus, we do not consider this construction incorrect.