Final answer:
Tiberius was the adopted nephew of Caesar who ruled the principate.
correct answer is 2
Step-by-step explanation:
The adopted nephew of Caesar who ruled the principate was Tiberius.
Tiberius was the second emperor of the Roman Empire and reigned from 14 to 37 CE.
He was the stepson of Augustus, the previous emperor, and his biological father was Tiberius Claudius Nero.
correct answer is 2