Final answer:
Rome would seek diplomatic solutions and negotiate from a position of strength when faced with a difficult area to conquer. They would establish colonies, build roads, and potentially seek assistance from neighboring empires.
Step-by-step explanation:
When faced with a difficult area to conquer, Rome would often choose to seek diplomatic solutions (b) rather than enforcing harsher punishments (a) or abandoning the conquest (c).One of Rome's successful strategies was to negotiate from a position of strength. Even after suffering defeats, they would continue the war until winning a major engagement and then negotiate for peace. Rome would also establish colonies in conquered lands as a first line of defense against revolts, and build roads to quickly respond to rebellions.If an area was particularly difficult to conquer, Rome might seek assistance from neighboring empires (d) to strengthen their forces and ensure victory.