For some reason, A and B are currently facing the choice of A and B. If both choose A. then A will get 5 units of benefits, and B will get 2 units of benefits; if A chooses A. If B chooses Plan B, then both A and B get 4 units of benefits; if A chooses Plan B and B chooses A. then A gets 6 units of benefits and B gets 1 unit of benefits: If A and B both choose B Then, each of them will get 3 unit benefits. Assuming that both A and B perform calculations and actions according to their own maximization standards, they both understand the benefits and losses of the above interests, and they choose in no particular order. Based on this, can it be launched? ['A chooses plan B and B chooses plan B.', 'A chooses plan A and B chooses plan B.', 'A chooses plan A. B chooses plan A.', 'A chooses plan B and B chooses plan A.']