A Government Uses Taxes to Build and Maintain a Museum

A government uses taxes to build and maintain a museum, and citizens can visit the museum without paying an admission fee. Which of the following considerations implies that visiting a museum is NOT a public good?

A) Although admittance is nonexcludable, it is rival because other museums are vying for consumers to visit them instead.
B) Visiting a museum is both nonexcludable and nonrival, which means it is not a public good.
C) Visiting a museum is both excludable and rival, which means it is not a public good.
D) Although enjoying the exhibits might be nonrival, the experience is excludable because admittance could easily be limited to those who pay.