5. There are three supply-side participants (A, B and C) in an electricity market, and their offers are given below. ri = 0.05P7 +25P, +30 ;rgl - 0-065%2 +45P, +75 (ma, 75 and m are the offer prices) T = 0.06F% +22.75P. + 48 The system demand (PD) is price elastic and given as a function of market price, as follows: T = = PD=90-p i In a Cournot competition where the generators maximize their profits, find the Nash equilibrium solution of the above auction