Respuesta :
Answer:
D) at a Nash equilibrium
Explanation:
A Nash Equilibrium is a concept that originates from game theory where both players have reached an optimal equilibrium (in this case both Thierry and Abdul maximize their profits), so no one will even try a different strategy.
If any of the players (Thierry and Abdul) changes their operating strategy, it might result in a loss for one or both of them, so no one will change it. Thierry will continue to produce 700 units in order to maximize his profit and Abdul will continue to produce 500 units to maximize his profit.