Thanks for the question! Let’s take a walk through the argument. From a big picture point of view, the argument is telling us that solutions to reducing health care costs can’t be found within the current system. Why? The system gives health care providers and insurers incentives to shift costs of treating illness onto other parties, including patients. The author then appeals to the reforms of the 1980s as an example. So how does the author makes his argument? In the way that (C) suggests. (C) tells us that the author uses an analogy to characterize interrelationships. The analogy the author uses compares the current health care system and possible reforms to the ones that happened in the 1980s. The interrelationships are those between the different players mentioned in the last sentence, such as physicians and patients with advanced illness. Hope this helps! Feel free to ask any other questions you might have.
