$**$Accounting: Depreciation Methods$**$

$**$Question:$**$

Which depreciation method allocates an equal amount of depreciation expense to each year of an asset's useful life?

A$)$ Straight$-$line depreciation

B$)$ Double$-$declining balance depreciation

C$)$ Units of production depreciation

D$)$ Sum$-$of$-$the$-$years'$-$digits depreciation