Answer:
A. Confirmatory bias
Explanation:
Based on the information provided within the question it seems that in this situation Darrell is demonstrating the phenomena known as Confirmatory Bias. This refers to the tendency that people have to interpret and use information only in a way that favors their own thoughts and beliefs. Which is what Darrell is trying to do by finding negative information about the TV to support his belief that Plasma Televisions are bad.
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