I'm just guessing but, protection from other countries
Many states' societies still believed in a 'seperate but equal' method of keeping race relevant and seperating people based on it.
Your answer would be c. oil and gas industry. Hope I helped!
D.
Pinckneys treaty and the XYZ affair were for Spain and France, and Jays treaty occurred after the Revolution.
The conclusion is that although a US president can technically send troops into a foreign country, in order to lawfully declare war, he or she must get the approval of Congress.