Big Rig Delivery Service has the following plant assels: Communications Equipment Cost, $5,760 with useful life of 8 years; Deliver Equipment Cost, $17,712 with useful life of 12 years; and Computer: Cost, $12,960 with useful life of 4 years. Assume the residual value of all the assets is zero and the straight-line method is used Big Rig's monthly depreciation journal entry will include a, OA credit to Accumulated Depreciation Equipment of $453 OB. credit to Depreciation Expense - Equipment of $5,436 OC. debit to Accumulated Depreciation - Equipment of $453 OD. debit to Depreciation Expense Equipment of $5,436