Consider now a Cournot model with linear demand and identical firms that is scaled by market size M. In this model, Q (P) = M(D P) and TC(Q) = cQ + F, with D = 6, c = 2, and F = 2. a) Compute how many firms would exist in the industry for M = 2,4,6,8. b) What if F 2,2.5,3,3.5 for the above 4 values of M respectively. Then, how many firms would exist in the industry for each value of M? c) Provide one example of an industry in which it is reasonable to think of F as variant, while M grows. Provide one example of an industry in which it is reasonable to think of F as growing with M.