Answer:
b
Explanation:
There is a large urban population.
His most important treatises include Physics, Metaphysics, Nicomachean Ethics, Politics, On the Soul and Poetics. Aristotle studied and made significant contributions to "logic, metaphysics, mathematics, physics, biology, botany, ethics, politics, agriculture, medicine, dance and theatre."
It becomes darker and more dangerous.
And you should actually take the time to read it, its good!! :D