Question 4 Property, plant and equipment are Not yet answered a. Marked out of Tangible assets used in the operation of business that have a useful life of less than one accounting 1.00 period. F Flag question b. Held for sale. Tangible assets used in the operation of a business that have a useful life of more than one accounting period. Current assets. e. Intangible assets used in the operations of a business that have a useful life of more than one accounting period