The correct answer is B) some aristocratic Yangban became merchants, or even peasants, over time.
In Korea, some aristocratic yangban became merchants, or even peasants, over time.
During the Republic period of Korea, before 1945, a Yangban was the educated male aristocrats, considered the elite of the country. They belonged to two distinct classes in the society of Korea. The "muban" or the martial class and the "munban" or the literary class. They studied the teachings of Confucius and were the example of moral conduct in Korea.