An expenditure that maintains an existing asset so that it can function in the manner intended should be O partially capitalized in the period in which it is made. O fully capitalized in the period in which it is made. O fully expensed in the period in which it is made. O partially expensed in the period in which it is made. The revaluation model of accounting for PP&E assets O may be applied to all classes of PP&E including investment property. O may be applied to investment property under ASPE. O is not allowed under IFRS. O uses a revaluation surplus account to hold net increases in the asset's fair value