Refer to the original data. assume that the company sold 18,000 units last year. the sales manager is convinced that a 10% reduction in the selling price, combined with a $30,000 increase in advertising, would increase annual unit sales by one-third.

Trade will take place: a. if the maximum that a consumer is willing and able to pay is less than the minimum price the producer is willing and able to accept for a good. b. if the maximum that a consumer is willing and able to pay is greater than the minimum price the producer is willing and able to accept for a good. c. only if the maximum that a consumer is willing and able to pay is equal to the minimum price the producer is willing and able to accept for a good. d. none of the above.