Analysis of test questions: this question examines the understanding of the development characteristics of Confucianism in Song and Ming Dynasties. According to the information provided by the stem, true knowledge and untried knowledge depend on whether they are obtained through practice, which is consistent with Zhu's cognitive theory of obtaining truth through practice-"knowing knowledge through things", so the correct choice of this question is item A.
Comments: Neo-Confucianism in Song and Ming Dynasties is divided into Zhu Cheng Neo-Confucianism and Wang Luxin's Neo-Confucianism. Zhu Cheng's Neo-Confucianism is practical and realistic, while Lu Jiuyuan's existential Neo-Confucianism is practical and realistic.