If a fixed asset, such as a computer, were purchased on January 1 for $1,648 with an estimated life of 6 years and a salvage or residual value of $133, the journal entry for monthly expense under straight-line depreciation is O a. Accumulated Depreciation Depreciation Expense 252.50 252.50 O b. Depreciation Expense 21.04 Accumulated Depreciation 21.04 Depreciation Expense 252.50 Accumulated Depreciation 252.50 Od. Accumulated Depreciation 21.04 Depreciation Expense 21.04