When performing the test of software control whether the client's transactions are with authorized customers and are within the approved credit limit$,$ the auditor has gain assurance that the control functions are performing properly. Which of the following evidence was demonstrated during the test of controls procedure?

Select answer from the options below

The auditor was not able to confirm test results. $.$

IT controls are weak and are not subject to unauthorized changes

Test data identifies exceptions when the auditor entered an invalid transaction.

Manual follow$-$up procedures are non$-$effective.