Let us examine the market for smart phones. Assume that the inverse market demand function is given by p = 240-2Q. Initially, firm A and firm B produce at equal unit cost, c0. After investing heavily in R&D, firm A has managed to reduce its unit production cost to c1 = $40< c0. For which values of c0, firm A ís innovation can be classified as drastic (major), and for which values of c0 the innovations classified as nondrastic (minor). Prove your result using the definition.