"During the reign of Emperor Taizu of Song (960-976 CE), Confucianism was deeply embedded into the administration of the Song Dynasty. The civil service examination system, revitalized under Emperor Taizong, was based on Confucian principles to select officials. However, this system often favored those from affluent backgrounds due to disparities in access to education and resources, thus reinforcing existing social hierarchies."
The implementation of Confucian principles in the Song Dynasty’s civil service examination system most directly resulted in which of the following?