Answer:
d. a landed gentry class assumed a position of social and economic dominance.
Step-by-step explanation:
The Tang and Song eras were known as the golden age. During this era, the peasants made up the most population. Social groups during the Song and Tang Dynasties divided into two classes: the gentry (nobility) and the peasants. The gentry were land-owning classes and usually had a connection to education. Through education, they held positions in offices.