Answer:
2a: Roman goods were transported through the massive roads they built, throughout the Roman empire.
2a: Roman Goods were also transported through the Mediterranean sea, which during the time was being controlled by the Romans.
2b: The way trade was easily accomplished was by having so much control over a large mass of land. If the Romans did not have control over the entire Mediterranean, other city-states would be able to interfere with their trade routes. Therefore it is easy for the Romans to trade throughout the Mediterranean Sea.
Step-by-step explanation: