In the model of monopolistic competition, there can be short-run:____________.
a. losses or profits, but there must be profits in long-run equilibrium.
b. profits, but there must be losses in long-run equilibrium.
c. losses or profits, but there must be losses in long-run equilibrium.
d. losses or profits, but there must be neither profits nor losses in long-run equilibrium.
e. losses, but there must be profits in long-run equilibrium.