Property of Mary Is Damaged in a Fire

Property of Mary is damaged in a fire.She claims the property damage amounted to $10,000,and the insurer claims it only amounted to $5,000.Which of the following is true in this situation?

A) Mary should demand an appraisal under her policy's appraisal clause.
B) Mary has no alternative because she must accept the insurer's valuation.
C) The insurer is required to accept the insured's valuation unless the insurer can establish that the insured failed to act in good faith.
D) Mary should call the state inspector who investigates and makes rulings in such cases.
E) Mary should file for a field evaluation.