A mural was painted in a city's public park.As a result of constant touching and flash photography, in spite of signs requesting "no touching" and "no flash photography," the mural had to be taken down because it became worn in some areas.

What criteria identifies the mural as a Tragedy of the Commons?

• The sign served as a moral compass to keep the mural intact.
• Not everyone could view the sign because it was taken down.
• Everyone in the town had access to the mural.
• There was no one there to enforce the written rules.