Just need answer no explanation

Consider two firms producing homogeneous goods. Firm 1 and firm 2 simultaneously set outputs q, and q,. The inverse demand is P =20-3(q, + q, ) and both firms have marginal costs of 2. In a Nash equilibrium, the firms produce O a. (9 . 92 ) = (3, 1.5) O b. (9 ; , 9 ) ) = (1.5, 3) O c. Each of the other suggestions might occur in a Nash equilibrium O d. ( 9 ; , 9 2 ) = (2, 2)