Mashaal Masha
Linguist Deborah Tannen has cautioned against framing contentious issues in terms of two highly competitive perspectives, such as pro versus con. According to Tannen, this debate-driven approach can strip issues of their complexity and, when used in front of an audience, can be less informative than the presentation of multiple perspectives in a noncompetitive format. To test Tannen's hypothesis, students conducted a study in which they showed participants one of three different versions of local news commentary about the same issue. Each version featured a debate between two commentators with opposing views, a panel of three commentators with various views, or a single commentator.

Which finding from the students' study, if true, would most strongly support Tannen's hypothesis?
Difficulty: Hard
A: 

On average, participants perceived commentators in the debate as more knowledgeable about the issue than commentators in the panel.

B: 

On average, participants perceived commentators in the panel as more knowledgeable about the issue than the single commentator.

C: 

On average, participants who watched the panel correctly answered more questions about the issue than those who watched the debate or the single commentator did.

D: 

On average, participants who watched the single commentator correctly answered more questions about the issue than those who watched the debate did.

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