Answer:
Option C.
Step-by-step explanation:
The Romans, is the right answer.
To maintain reliable and speedy communication throughout the empire, the Roman emperor Augustus founded the Cursus Publicus to convey the messages tax revenues, officials between various regions and Italy. Though recognized as the most highly developed postal service it was meant to be used only by the emperor, his officials and friends. Therefore, to maintain the efficiency of the postal service, Romans developed huge road networks.