Answer:
By bringing peace to the Romana people
1) The law of self interest - when people work for themselves and their own good
2) The law of competition - people make better products because of competition
3) The law of supply and demand - enough goods would be produced or supplied at the lowest price to meet the demand in a market
The correct answers would be Americans stopped buying from overseas nations and Many countries raised tariffs on imported goods
Apart from the military control of China by the royal house, the Zhou dynasty controlled different regions of their kingdom by a series of doctrines one of these is called the "Mandate of Heaven", it asserted the Zhou's moral superiority and justified their control over the regions.
