The key to solving the problem is to stick to the material and understand it. Judging from the materials, this thinker emphasized "uselessness", which has two meanings. One is to advocate "uselessness", and the other is to show the dialectical relationship between "being" and "nothing". Combining these two meanings, it is preliminarily judged that this thinker should be a representative figure of Taoism. Item A is the Confucian Wang Yangming's mind; Item B is Dong Zhongshu's Induction between Heaven and Man; Item C is Xunzi's viewpoint; Item D is Laozi's thought, and the view of "uselessness" comes from Zhuangzi, so I choose item D..