Chen Duxiu advocates the ethical concept of "respecting reality but neglecting emptiness" and "being practical instead of empty words", advocates "sanctifying life" and "making use of generous life", and emphasizes the present. B

Analysis of test questions: Chen Duxiu is the standard-bearer of the New Culture Movement, and his ideas such as "respecting reality but neglecting metaphysics", "being practical rather than empty literature" and "making use of rich students" are obviously critical of Confucian ethics, so he chose B.