Final answer:
In Covariation Theory, the most relevant detail for Taylor analyzing Pearl's behavior is that other people behave differently than Pearl in similar situations. Correct option is A.
Step-by-step explanation:
If Taylor is using Covariation Theory to analyze Pearl's behaviour, the most relevant detail would be option A) In similar situations, other people behaved differently than Pearl.
Covariation Theory suggests that people determine the cause of a behavior by analyzing the patterns of behavior across different situations.
If others behave differently than Pearl in similar situations, it indicates that Pearl's behavior is not typical or expected. This would be crucial information for Taylor to consider when applying Covariation Theory.