I first chose option B in question 21, thinking that it coincided with the idea of evaluating events. However, after rereading the paragraph, I realized that the key point was about teachers not reflecting deeply enough on the reasons behind events in the classroom. The correct answer, C, mentions “looking closely at possible causes,” which connects directly to the text's idea of analyzing contributing factors. My mistake was misunderstanding one detail: I focused on what I thought made sense rather than what the text said. In this question I relied on what I thought was correct, and I did not read carefully.