Which of the following would be covered under a building and personal property coverage form?

In a building and personal property coverage form, coverage typically includes the physical structure of the building itself, which encompasses various elements, such as walls, roofs, and even the foundation. This comprehensive approach allows property owners to ensure that all integral parts of the building, including the foundation that supports the entire structure, are protected against specified perils.

The other options, while they may be relevant in different contexts, do not fall under the typical coverage provided by a standard building and personal property form. Personal property while airborne would likely be covered under a different policy meant for specific types of risks. Outdoor signs may not always be included unless otherwise specified, as they can sometimes fall under a different category depending on local regulations and the specific coverage terms. Similarly, underground pipes, while essential for a property's infrastructure, often have separate rules regarding insurance coverage and are not usually included in the standard building and personal property coverage.