Destruction of which of the following qualifies as arson?

Arson is defined as the willful and malicious burning or exploding of property, and it can involve various types of structures. The correct answer encompasses both buildings and structures on open-space land, as these can also be the subject of arson-related charges. Under the law, a structure can include not just traditional buildings, but any type of property designed for occupancy or use, and this could extend to certain structures found in open spaces, such as barns or sheds.

Choosing only buildings or limiting the scope to a vehicle or a more restricted category neglects the broader definitions that the law encompasses. Structures that are on open-space land can be included in arson laws because they can still pose a threat to life or property and might also have significant public safety implications. Hence, the inclusion of both a building and open-space land structures accurately reflects the expansive nature of what can be considered arson under penal codes.