What effect does a positive externality have on the social value curve compared to the private demand curve for a good?

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It causes the social cost curve to lie above the private cost (supply) curve.None of the provided options are correct.It results in the social value curve being positioned above the private demand curve for the good.It leads to the social value curve falling below the private demand curve for the good.

Explanation

A positive externality increases the overall benefit to society beyond the private benefit received by consumers. This means the social value curve lies above the private demand curve, reflecting the additional value external to the buyer.