Answer:
C. Augustus Caesar used his broad powers as emperor to usher in a time of peace. Roman culture flourished, and ambitious public works projects improved the lives of Rome's subjects everywhere, is the correct answer.
Step-by-step explanation:
Pax Romana means Roman Peace and is used to refer period of history of Roman Empire that lasted from 27 BC to 180 CE. It's known as a peaceful period because during this period Romans didn't rebel against the Emperors it was safe from the tribes living outside the Roman Empire. Pax Romana began under the rule of Augustus Caesar. This term is misleading as Rome wasn't at peace, it continued to expand through conquest however Its called Pax Romana due to the stability of the Empire.