I dont know the answer to this question
I think D is the answer. I may be incorrect, though.
Agricultural development led early societies to settle. Settlements required growing food and a lasting source of water. That's why these early civilizations were born around rivers. The proximity of rivers facilitated access to fertile soil and, logically, to water.
Once a civilization has a stable source of food it can start growing surplus of it, which creates the possibility of trade. That is, stable food production is a base for the complexification of a society that can lead to the creation of other jobs, like the merchant.
It also enables a society to complexify its social structures, to build cities, to develop religion and culture which creates more jobs.
Here are some of the government policies that helped the economy recover from postwar recession:
1. supply-side economics - investing in capital
2. cooperative individualism - cooperate when needed, be individual otherwise
3. cutting the federal budget - don't spend too much money on unnecessary things
Senator Henry Clay proposed the compromise
