Passage Summary: A professor claims that because a pizza place turned down a deal that was free and made customers happy, their only possible reason was to be spiteful toward their rival.

Conclusion: Checkers Pizza refused to accept Marty's coupons solely because they wanted to damage Marty's business.

Reasoning: Accepting the coupons would have cost Checkers nothing and would have pleased their customers, yet they were the only local shop to refuse them.

Analysis: The professor is making a huge leap by assuming that because one or two obvious benefits were ignored, the *only* remaining motive must be malice. To make this conclusion logically sound, we need an assumption that eliminates every other possible reason Checkers might have had, such as a desire to maintain a premium brand image or a policy against third-party promotions. Look for an answer that bridges the gap by stating that if no financial or customer-satisfaction reason exists for a refusal, then the motive must be to harm the competitor. It's a classic case of 'if it's not A or B, it must be C,' which only works if we assume A, B, and C are the only options.