Table 17-11 Only Two Firms, ABC and XYZ, Sell a Particular Product

Multiple Choice

Table 17-11
Only two firms, ABC and XYZ, sell a particular product. The table below shows the demand curve for their product. Each firm has the same constant marginal cost of $8 and zero fixed cost.
-Refer to Table 17-11. How much less do each of these firms earn in the Nash equilibrium than if they jointly maximize profits?

A) $5
B) $10
C) $15
D) $20