参考答案

正确答案：D
解析：What was the professor's main point?
选项内容表明，该题可能考查民主在美国的发展情况。[B]中的never语气太过绝对。根据对话中的... that the early framers... really didn't want democracy as we know it today 推断，美国的民主由最初的形式发展到今天经历了相当长一个阶段，故[D)为答案。