Mexico and the Members of OPEC Produce Crude Oil

Mexico and the members of OPEC produce crude oil. Realizing that it would be in their best interests to form an agreement on production goals, a meeting is arranged and an informal, verbal agreement is reached. If both Mexico and OPEC abide by the agreement, then OPEC's profit will be $200 million and Mexico's profit will be $100 million. If both Mexico and OPEC cheat on the agreement, then OPEC's profit will be $175 million and Mexico's profit will be $80 million. If only OPEC cheats, then OPEC's profit will be $185 million, and Mexico's profit will be $60 million. If only Mexico cheats, then Mexico's profit will be $110 million, and OPEC's profit will be $150 million. In the Nash equilibrium of this game:

A) both Mexico and OPEC abide by the agreement.
B) both Mexico and OPEC cheat on the agreement.
C) Mexico cheats on the agreement and OPEC abides by the agreement.
D) OPEC cheats on the agreement and Mexico abides by the agreement.