Final answer:
A review of the system activity log would reveal the issue of the inventory master file update being performed on a Sunday instead of the scheduled Friday update.
Step-by-step explanation:
A review of the system activity log kept by the operating system would reveal problems related to the scheduling and execution of system tasks, such as which file operations took place and when. For the given options in the context of inventory processing issues:
- A. The inventory master file scheduled to be updated every Friday was updated on Sunday
- B. In recording the transaction an inventory purchase was inadvertently recorded as an inventory usage
- C. An inventory purchase was recorded twice on the transaction file to be used in updating the master file
- D. The dollar amount of an inventory purchase transaction had two of the digits transposed
The system activity log would most likely reveal the problem outlined in option A, because it involves a deviation from the scheduled task which should be logged by the operating system, clearly showing that the inventory master file update was performed on a Sunday instead of the scheduled Friday.