It did complex calculations needed to fire artillery!
If you buy stock, you hope that in the next few years there will be "a bull market," since this phrase means that the stock market is doing well and you'll make a profit.
It seems like B is the most likely answer, considering it's really the only one that applies to democracy.
The Greeks defeated the most powerful empire of the day, Persia
Countries that have "free-market" economy generally have better standards of living. It is an economy whereas it is dependent of supplies and demands. By no meaning it has no controls within the government.
