A price ceiling is ?

A. a maximum price usually set by government that sellers may charge for a good
B. the different between the initial equilibrium price and the equilibrium price after a decrease in supply
C. a minimum price usually set by government that sellers must charge for a good
D. a minimum price that consumers are willing to pay for a good.

The reason for the kinked demand curve is that ?

A. The oligopolist believes that competitors will match output increase but not output reduction
B. The oligopolist believes that competitors will match price increase but not output reduction
C. The oligopolist believers that competitors will match price cuts but not price rises
D. The oligopolist believes that competitors will match price increase but not output increase