11 marked out ot Week 1 - Production Possibility Frontier; and Demand previous page Week 2 - Supply, Market equitiorium; and Eiriony of marbot Online Dam 023- SpS Economic Principles for Business final ban ParT A (SPS1025) Time left 1:42-54 If the marginal social cost of a good equals the marginal private cost of the good. then the marginial external cost of the good select one. OA iszero squals the marginal social benefit. equals the marginal private benefit. squals the marginal social cost