Concept:Under the average clause, the insurer pays only the proportion of the loss that the sum insured bears to the actual value of the property.Explanation:Property value = ₦1000Amount insured = ₦800Actual loss = ₦400Claim amount = Property valueAmount insured×LossClaim amount = 1000800×400Claim amount = 0.8×400=320So the insurance company pays ₦320.Answer:₦320, i.e. option B.