A. The government's control of most of the utilities including power and water supply represents monopolistic competition.
B. The power supply industry in Travnia is oligopolistic in nature.
C. The competition in the bottled-water industry represents pure competition.
D. Pentl's current pricing strategy can be termed as predatory pricing.
E. A price war would erupt if the other firms reduced prices, too, and forced Pentl to reduce prices further.