For a person to be guilty of arson in the third degree, what must be true about the property involved?

To establish guilt for arson in the third degree, the law requires that the property involved must have a value of $25 or more. This criterion is important because it differentiates between various degrees of arson based on the potential harm caused and the intent to commit the act. The $25 threshold signifies that even minor acts of arson that result in damage to property are taken seriously under the law.

While the other options mention conditions related to the type of property, occupancy, or ownership, these aspects pertain to different degrees of arson or related offenses. The focus on property value highlights the legislature's emphasis on the significance of the damage inflicted rather than specific characteristics of the property itself, making it a critical component for establishing arson in the third degree.