katrice1674 katrice1674 12-06-2024 Business Answered If x₁=f(P₁,P₂) and x₂=φ(P₁,P₂), then the two commodities are substitutes ifA. (δx₁/δP₂)<0,(δx₂/δP₁)>0B. (δx₁/δP₂)>0,(δx₂/δP₁)<0C. (δx₁/δP₂)>0,(δx₂/δP₁)>0D. (δx₁/δP₂)<0,(δx₂/δP₁)<0