Why is the supply curve referred to as a marginal cost curve?
a. it shows the willingness of consumers to purchase a product at different prices.
b. it shows the difference between the lowest price a firm would be willing to accept and the marginal cost of production.
c. it shows the price producers actually receive in the market.
d. it shows the willingness of firms to supply a product at different prices.
e. it shows the difference between the highest price a consumer is willing to pay and the lowest price a firm would be willing to accept?