What was one effect of the american growing cities after the civil war?

there was not many opportunities for farmers.
there was slow infrastructure developments.
there was a decrease in immigration population.
farmers left their farmlands to migrate to the cities.

Farmers left their farmlands to migrate to the cities.

Explanation:

This was one of the effects of the growing cities after the Civil War. After the war, cities developed rapidly. This led to farmers leaving their farmlands to migrate to the cities, hoping to find better employment. In turn, this led to a large demographic change all over the country, as urban populations increased and the social landscape was transformed.

the correct answer is to reduce tax