i may be wrong but i think it is A.
<span>if most members in the Congress from his states are Republican
if his state has a Republican governor
his state cast electoral votes in the last election for the Republican candidate</span>
The states did not act immediately.
States were also able to conduct their own foreign policies.
States also had their own money systems.
Their items could be delivered quickly and efficiently. The railroads could also be all over the area and the train could travel from one place or another and deliver the necessary items to those companies.
Price will be below equilibrium causing C to happen