Correct

鼻祖

/ bízǔ / 
Strokes

Definition

the earliest ancestor/originator (of a tradition, school of thought etc)

Example

As a Noun

earliest ancestor; forefather

1
Zhōnghuámínzú
中华民族
de
的
bízǔ
鼻祖

forefather of the Chinese nation

As a Noun

founder; originator; initiator; forefather

2
Tiāntǐ
天体
wùlǐxué
物理学
de
的
bízǔ
鼻祖

founder of celestial physics