Which statement is accurate regarding changes in credit quality of an asset under IFRS 9? A. An entity may revert from recognizing lifetime expected credit losses to recognizing 12-month expected credit losses if there is no longer a significant increase in credit risk since initial recognition for the asset B. When an asset has experienced a significant increase in credit risk a write-off of a portion of the asset is required to be recognized during the reporting period C. A loss allowance may not be reduced for subsequent improvement in credit quality D. Once lifetime expected credit losses are recognized on an asset no reversion is permitted