What commands our attention as we shop for groceries each week is the environment around us, such as the number of people in front of us at the checkout counter. Yet when we watch another person's behavior at the grocery store, he or she, rather than the environment, occupies the center of our attention. As a result, we tend to engage in the attribution error. That is, we are irritable because the lines are long, but the other person is cantankerous because he or she is an unhappy person. What explanation below best explains this use of the fundamental attribution error?