单选题 Which of the following statements about IAS 20 Accounting for Government Grants and Disclosure of Government Assistance are true? (i) A government grant related to the purchase of an asset must be deducted from the carrying amount of the assetin the statement of financial position (ii)A government grant related to the purchase of an asset should be recognised in profit or loss over the life of the asset (iii)Free marketing advice provided by a government department is excluded from the definition of government grants (iv)Any required repayment of a government grant received in an earlier reporting period is treated as prior period adjustment