The factor that most contributed to the development of roman civilization was

rome’s language.

rome’s geography.

rome’s isolation from the world.

rome’s foundation myth.

The answer is Rome’s geography. It’s location in Italy made it easy for the Romans to extend their influence in the Mediterranean Basin.  It helped spread its influence as the population grew and began settling in different areas and this also contributed to the spread of its civilization.

The correct answer is the second option.

Rome's geography.

true, they can both only can be studied with ancient text.