When an Asset Is Fully Depreciated

When an asset is fully depreciated:

A) the total depreciation is equal to the accumulated depreciation, and the asset has reached the end of its actual useful life.
B) the book value is equal to the salvage value, and the asset has reached the end of its estimated useful life.
C) the depreciable cost is equal to the salvage value, and the asset is of no further use to the company.
D) the book value is zero, and the asset has no market value.