💡 Detailed Explanation
The man first mentions that the professor provides deep historical context, which helps develop a multifaceted perspective. The woman agrees and adds her main point: the professor uses relatable examples to explain difficult theories, making them easy to understand ('すっと頭に入ってくる'). The question specifically asks for the woman's reason. While becoming fond of a previously disliked subject is a result, the core reason she gives for the popularity is the professor's skill in simplifying complex topics.