Carmela Department Stores Ltd Has a Fully Integrated IT Accounting

Multiple Choice

Carmela Department Stores Ltd has a fully integrated IT accounting system and is planning to issue credit cards to credit-worthy customers. To strengthen the internal control by making it difficult for one to create a valid customer account number, the company's independent auditor has suggested the inclusion of a check digit that should be placed:

A) at the beginning of a valid account number, only.
B) in the middle of a valid account number, only.
C) at the end of a valid account number, only.
D) consistently in any position.