Question

1. which emperor greatly expanded the empire?

a. nerva
c. hadrian
b. trajan

Explanation:

Among the Roman emperors listed, Trajan (option b) is known for greatly expanding the Roman Empire through military conquests, reaching its greatest territorial extent during his reign. Nerva was more focused on stabilizing the empire, and Hadrian's focus was on consolidation and building (like Hadrian's Wall) rather than expansion.

Answer:

b. Trajan