i believe the answer is d im not really sure
The following is a list of causes of the American Revolution
1) Conflict between Great Britain and American colonists- The passage of several different taxes like the Tea Act and Stamp Act caused constant problems between the colonists and the government. This was due to the fact that the taxes were passed without the consent of the colonists.
2) Boston Masaacre- 5 unarmed colonists were killed British soldiers after a confrontation in the Boston streets.
3) Enlightenment ideas- the concepts of the social contract and unalienable Rights helped spark the American Revolution.
The answer to your question is c
It enabled civilizations around rivers to emerge because it enabled them to grow their own food in fertile lands. It also enabled class division to emerge into those who dealt with trade and those grew food. It also enabled rise of political system like monarchies with rulers and dynasties.
