Final answer:
The Song Dynasty developed China as an economic power through agricultural advancements and Confucian principles.
Step-by-step explanation:
The Song Dynasty was pivotal in the development of China as an economic world power based on agricultural advancements and Confucian principles. The Song rulers focused on internal economic development, creating a food surplus through agricultural advancements such as improved irrigation and the cultivation of new strains of rice. This led to a significant expansion in population, urbanization, and the availability of produce. Additionally, the Song Dynasty embraced Confucian principles, which emphasized social order and stability, contributing to the economic prosperity and cultural flourishing of China during this time.