The Accounting System for the Assembly, a Growing Restaurant, Requires

The accounting system for The Assembly, a growing restaurant, requires that all transactions be entered as journal entries. When the bookkeeper for The Assembly enters the transactions, he discards the paperwork associated with the transaction. As an auditor for the accounting firm, which of the following recommendations should be shared with the bookkeeper?

A) As an auditor, I need to be able to review the source documents to verify the accuracy and validity of the accounting transactions. Therefore, source documents should be stored either physically or electronically.
B) Source documents do not provide an accurate audit trail as they can fade or be altered after entered in the system, so discarding them is an efficient operational decision.
C) As an auditor, I follow the audit trail generated by the AIS and do not consider the source documents when reviewing accounting transactions for accuracy.
D) Source documents take up too much physical storage space and are too difficult to sort through to be reviewed during an audit.