During early civilizations why did most cities rise in river valleys?

Question

a.River valleys provided work to men who built dikes and canals
b.People built cities on riverbanks for easy access to travel and trade
c.city-state goverment centers were located in river valleys
d.these fertile areas favored farms that would support large populations
I choose C.

Answer 1

C is incorrect.

Answer 2

I disagree with your answer.

The question is asking why a lot of people chose to live in river valleys.

Please try again.

Answer 3

Oh ok thank you for your help.