If you could choose one famous person (living or not) to be the substitute teacher
for a day, who would choose? What would
yoy hope to learn from them?

Morgan Freeman. I would love to learn about how he started being a actor and inspired me to not give up on life.

Correct answer is They led to overcrowding, which resulted in disease.

Explanation:

Last option is the correct one, as after Pericles ordered that all citizens of Athens should retreat to the city a great plague erupted. A lot of people died, including Pericles himself. Athenians were forced to surrender and destroy the city-walls.

All other options are thus wrong, because were not the main reason for the surrender.