Alex, Kara, and Susie are the only three people in a community. Alex is willing to pay $40 for the third unit of a public good; Kara is willing to pay $25. If the marginal cost of producing the third...

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Extracted text: Alex, Kara, and Susie are the only three people in a community. Alex is willing to pay $40 for the third unit of a public good; Kara is willing to pay $25. If the marginal cost of producing the third unit is $80, what is the minimum amount that Susie must be willing to pay for it to be efficient for government to produce the third unit? Multiple Choice $95 $80 $15 $65 The amount cannot be determined with the information provided.