Identify typical source documents that authorize or justifies a transaction to be recorded on the general ledger for the below five transaction types (e.g. a sales invoice or bill of lading justifies recording a sale on the books): a. Recording a fixed asset (equipment) on the books after a recent purchase b. Increasing your allowance for bad debts at year-end. c. Recording a debit to an expense and a credit to accounts payable. d. Recording a bank service charge for the month on the books. e. Wages earned by workers in a factory