Which statement regarding proof of loss is NOT correct?

The assertion that the proof of loss is completed at the option of the insured is not correct because this document is a formal requirement in the claims process that the insured must fulfill when filing a claim. Insurers require a proof of loss to assess the validity of the claim and to determine the appropriate compensation for the losses claimed. This document serves as a critical piece of evidence outlining the nature and extent of the loss incurred, and thus it is not merely optional for the insured. The other statements are accurate: the insurance company does request the proof of loss to process claims; it does confirm the insured's stance on the loss; and it must be a sworn statement which adds legal weight and accountability to the information provided.