Why Did the Progressive Land Reform Policies of the Northern

Why did the progressive land reform policies of the Northern Wei dynasty fail to bridge the cultural divide between the Han and the Tuoba?

A) The Han were insulted that the Tuoba wanted to redistribute their land.
B) The Han nobility had all fled south,and Han peasants refused to work for the Tuoba.
C) The Han showed little interest in working with the Tuoba because they had little interest in farming.
D) Empress Fang had overreached her powers as regent,raising strong opposition to the Northern Wei dynasty.