Consider the Cournot Duopoly we covered in the lecture. Which of the following is TRUE related to Cournot duopoly model? A. The welfare loss under Cournot duopoly is less than the welfare-loss under monopoly B. The equilibrium price in Cournot duopoly is less than the equilibrium price in a perfectly competitive market C. The equilibrium aggregate output level in Cournot duopoly is less than the equilibrium output level in monopoly