Me on these 3 questions

which of the following did the south see as its advantage in the war?
a: the south had plenty of cotton for cloth.
b: the south produced more than half of the country's wheat.
c: the army needed supplies.
d: southerners' rural lifestyles better prepared soldiers for war.

which of the following was a war strategy used by the union?
a: stampede
b: blockade
c: bombing
d: air raid

which of the following describes the effect of new military technology on the cival war?
a: more accurate weapons resulted in fewer causalities.
b: more accurate weapons resulted in huge causalities.
c: stromger ships resulted in fewer sea battles.
d: new weapons reduced the need for blockades.