Which of the following statements is consistent with the textbook's analysis of perfectcompetition?

(2pts)

Question 14 - Which of the following statements is consistent with the textbook's analysis of perfectcompetition?

a Although individual perfectly competitive firms won't pay to advertise, the industry as a whole may well advertise.

b Higher costs for one firm in the industry will result in that firm charging a higher price than the other firms in the industry.

c If all the firms in an industry charge an identical price for their products, this is clear evidence of collusive behavior.

d All of the above

e None of the above