Slaves in Rome might include prisoners of war, sailors captured and sold by pirates, or slaves bought outside Roman territory. In hard times, it was not uncommon for desperate Roman citizens to raise money by selling their children into slavery.
To recap, self-interest and competition are very important economic forces. Self-interest is the motivator of economic activity. Competition is the regulator of economic activity. Together they form what Adam Smith called the invisible hand, which guides resources to their most valued use.
The attack lead to the US declaring war with Japan which also caused the m to join the Allied forces for help
The answer is A. They were planning on using the slaves to dig for them