In relation to business income, which of the following statements is most correct? A.If a business earns an amount from an unusual or one-off transaction it can never be ordinary income. B. A non-cash prize received by a business from its supplier for exceeding sales targets will not be assessable income as it cannot be converted to cash. C. The proceeds from the sale of a building that a business has used to produce assessable income will always be ordinary income. D. Compensation payments paid to a business for loss of trading stock in a fire will be assessable income. E. Proceeds from the sale of shares can never be ordinary income.