Julian and Meghan Are Discussing Several Theories They Have Found

Julian and Meghan are discussing several theories they have found that offer explanations for why children become bullies in schools. Julian is not sure how to sift through all the theories because they all seem equally convincing. Meghan suggests that they go with the explanation that is the simplest. Meghan's decision was made based on

A) observational methods.
B) statistical significance.
C) biased sampling.
D) the law of parsimony.