In ancient（古代的） China, people have three names: the family name, the given name, and the courtesy name（字）. Do you know the famous poet（著名诗人）—Li Bai? His family name is Li. His given name is Bai and his courtesy name is Taibai.
People use their given names when they are with their family or friends. And the elders like grandparents and parents call their given names at home. But in the workplaces（工作场所）, people use their courtesy names.
Men get their courtesy names when they are 20 years old. Women get their courtesy names after they get married（结婚）.
People's courtesy names have something to do with their given names. For example, Zhuge Liang's given name is Liang. It means "bright". His courtesy name is Kongming. And the meaning is "very bright".
①the family name ②the middle name ③the given name ④the courtesy name
B . 
C . 
D . 
