$($CPA$)$ Depreciation is computed on the original cost minus estimated salvage value under which of the following depreciation methods?

a$.$

Declining Balance Production or

a$.$

$\backslash$table$[[,$Method,Use Method$],[,$No$,$No$],[$No$,$Yes,$],[$Yes$,$Yes,$],[$Yes$,$No$,],[$a$.,$No$,$No$],[$b$.,$No$,$Yes$],[$c$.,$Yes,Yes$],[$d$.,$Yes,No$]]$