Correct

三代

/ sān dài /
Strokes

Definition

three generations of a family/the three earliest dynasties (Xia, Shang and Zhou)

Example

As a Noun

three generations [i.e. father, son, and grandson]

1
jiā
他家
sān
dài
dōu
shì
jiàoshī
教师
  

The three generations in his family are all teachers.

2
Sān
dài
tóngtáng
同堂
de
huì
聚会

family party at which all three generations are present

As a Noun

)three earliest dynasties [namely Xia(夏), Shang(商)and Zhou(周)dynasties]

As a Noun

three generations in the Qing Dynasty [namely Kangxi(康熙),Yongzheng(雍正)and Qianlong(乾隆)]