Which most likely was Persia's most valuable asset?
its canals
its cotton crop
its mines
its oil supply

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.

answer; speaker;

answer; latency;

answer; integrative;