kylab615 kylab615 30-04-2024 Advanced Placement (AP) Answered (S) Price P₁ ---------- P₁₂ ----------- Q₁ Q, S-MSC=MPC D=MPB Quantity Which of the following identifies the socially optimal output and price level? O P1 and Q1 P1 and Q3 OP2 and Q2 O P₂ and Q3 P2 and Q4 MSB