The Reason the Demand Curve for a Public Good Is

The reason the demand curve for a public good is constructed differently from that for a private good is that

A) all consumers will have the same amount of the public good.
B) all consumers have the same reservation price for the public good.
C) different consumers can consume different amounts of the public good.
D) government is going to provide the good.
E) tax revenues will be used to pay for the public good.