Passage Summary: TV shows survive on ad money, and advertisers only pay if people buy their stuff. Therefore, if you want your favorite show to stay on TV, you should go out and buy the products they're advertising.

Conclusion: People who want to keep a TV show on the air ought to purchase the products advertised during that show.

Reasoning: TV shows rely on advertiser funding, and advertisers only provide that funding if the audience buys their products.

Analysis: The argument moves from a causal chain (Buying -> Ad Money -> Show Survival) to a moral or practical obligation. It suggests that if you want the end result, you should perform the action that starts the chain. This is a 'means to an end' principle. Look for an answer choice that establishes a rule stating that if an action is necessary to achieve a desired goal, one should perform that action.