If this is what I'm thinking then it's like Japan's history. Where Japan was basically run by feudal lords and their loyal clans. until Japan started to becomes westernized. It's affects where a civil war between the samurai fighting for the old ways and the new Japan military who were fighting for railroads and a new age that would disgrace the samurai's life style.
I would say B. Eustress because this stress is a "good" type of stress that aided you in performing well. Eustress is stress that is "good," and helps you.
The economy was largely based on agriculture
Hernan Cortés is the answer.
