The original name of Changez (Genghis) Khan was

Khasul Khan
Yesugai
Temuchin (Tenurjin)
Ogadi

The correct answer is (c). Temujin (Tenurjin) was the original name of Genghis Khan.

Khasul Khan was the name of Genghis Khan’s father.

Yesugei was the name of Genghis Khan’s grandfather.

Ogadi was the name of Genghis Khan’s great-grandfather.