Can I get some help on this question?

The Korea and China are competing for a next generation computer chip market. Samsung and Changxin are the companies that compete for this market. Since developing the new generation computer chip requires a huge R&D investment, the payoff matrix is given as follows: Payoff (Profit) matrix (Samsung, Changxin) without government's subsidies ($million) Production (by Changxin) No production (by Changxin) Production (by Samsung) (-10,-40) (30,0) No production (by Samsung) (0,20) (0,0) Answer the following questions based on the above payoff matrix. Without any governments' subsidy, what action combinations can be supported as the Nash equilibrium (or equilibria) of the above game of entering the next generation computer chip market? Note that more than one action combination can be supported as a Nash equilibria