A monopolistically competitive firm faces a demand curve for its organic coffee beans that has a price elasticity of demand of minus 1.0 throughout its entire range. All other things being equal, which one of the following is most likely to result in an increase in the firm's profits?
A decrease in the cost of producing the coffee beans
A decrease in the price of the coffee beans
An increase in the price of the coffee beans
An increase in the scale of its production facilities