20. 某五星級旅館的房務人員工作時，發現其中一間客房地毯損壞需要更換，若依照正確的修繕流程，從提出需求、請購與付款的順序，依序應由下列哪些部門負責？ (A) engineering department→front office→purchasing department (B) housekeeping department→front office→security department (C) engineering department→security department→purchasing department (D) housekeeping department→purchasing department→financial department