The building of cotton mills in the South meant decreased: A. dependence of the South on the North.
B. political power of the South over the North.
O O ОО
C. demand for factory labor.
D. demand for cotton goods.

I sayA!~ Hope it helps!~

(Sorry if you get it wrong or I got it wrong-)

Explanation:

A. Dependence or the south on the north.

~The Confuzzeled homan

a system of cooperative federalism emerged, as the powers of the federal government expanded.

they sent much needed naval support to the colonists, and were instrumental in the siege of yorktown