Which characteristic defines personal contracts in property and casualty insurance?

Personal contracts in property and casualty insurance are specifically designed to address the individual needs and circumstances of the policyholder. This characteristic emphasizes that the contract is unique to the individual who holds the policy, meaning it takes into account their particular situation, assets, and risks.

Such contracts are tailored agreements where the insurer evaluates the personal details of the insured, which can include their history, property value, and specifics of coverage needed. This personal aspect is fundamental because it acknowledges that insurance coverage is not a one-size-fits-all solution, and different policyholders have different levels of risk that need individual assessment.

On the other hand, the other characteristics do not align with the nature of personal contracts. The insurer's responsibility for building maintenance pertains more to service contracts and is not a standard feature of insurance policies. Transferability is not a feature of personal contracts, as they are typically non-transferable and tied closely to the original policyholder. Finally, while a policy may cover a building, it is not defined by an attachment to specific property but by the individual owner’s unique needs and insurance requirements.