Why were North America's major cities built along rivers? A Rivers were important for transportation and water.
B Rivers did not help them.
C Rivers lay in the tropical climate.
DRivers were only near mountains and deserts.

A, mostly for their basic needs

Explanation:

Many large cities grew alongside rivers and other waterways, because rivers provided convenient transportation before railroads and roads were built.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.

answer; in small towns;