Introduction for the question, How did geography affect Greek culture ? 20 points IMPORTANT!!

Greece's steep mountains and surrounding seas forced Greeks to settle in isolated communities. Travel by land was hard, and sea voyages were hazardous. Most ancient Greeks farmed, but good land and water were scarce. They grew grapes and olives, and raised sheep, goats, pigs, and chickens.Greek city-states likely developed because of the physical geography of the Mediterranean region. The landscape features rocky, mountainous land and many islands. These physical barriers caused population centers to be relatively isolated from each other. The sea was often the easiest way to move from place to place.

i beleive a. is the only possible answer

so they can defeat there oppenent