As I am thinking you mean "Producers" when you say "Sellers" I am going to go with, Yes. You are correct it is Supply.
(Also the other one is called Demand not price)
In this passage Madison suggested that under a confederation that the states would not cooperate with each other voluntarily.
<h3>Madison's appeal</h3>
According to Madison it was going to be very difficult for the states to voluntarily obey the federal law.
He said that it was unable to secure a union due to the fact that the United States was founded on the principles of a confederate nation.
Read more on the confederate states here:
brainly.com/question/587546
<span>In the late 1800s, the Populist Movement grew out of fears resulting from the Panic of 1873 wherein the price of agricultural goods fell. Farmers began to worry that they would lose money and started a party that represented their own interests.</span>
I think it might be d but please let me know if it is right