Beginning with the Kamakura Shogunate, Japan Differed from China in Which

Beginning with the Kamakura Shogunate, Japan differed from China in which important way?

A) Japan adopted Confucianism as its guiding governing principle, while China began to abandon its Confucian roots.
B) Japan was ruled by a powerful central monarch, while China was ruled by a confederation of influential aristocrats.
C) Chinese peasants could own land, while Japanese peasants were barred from owning any property.
D) China was ruled by a civil bureaucracy, while Japan was ruled by a military elite.