I don't think it should be taken at face value because those ways could be the main ways to earn money, but it could probably be the least reliable or successful ways. This sentence could just be a lie taken literaly in which has a hidden meaning. This could be a meaning that you might not get, in which will leave you ripped off.
Answer:
Because of their beliefs
Explanation:
They refused to worship the emperor and refused to worship the gods or take part in sacrifice.
Social classes: King
Priests
Scribes
Merchants & Artisans
Commoners
Slaves
Economic classes: calendar and irrigations (via canals and ditches), craftsmen (copper and bronze workers)
B: lavish lifestyle. I just took the quick check so if you need help with any other questions lmk :)