B was the answer my teacher gave me
If it weren't for flooding, the soil near the river would not be as fertile as it was thanks to the Nile River flooding. Thus, people who lived near the river wouldn't be able to farm as effectively as before which would affect their economy and rate of survival quite drastically. For growth and development of a community, it is important that the soil be fertile, which usually happens when a river floods.
The answer in my thouts it B and I hope it right
Answer:
they controlled colonies' government but gave colonies economic control. allowed colonies to run their government but held economic control.