which is NOT an example of test procedures you'd perform for a test of operating effectiveness?

a. for a selection of changes to the IT system, inspect the final approval from IT within the change ticket, to determine whether the changes to the IT system program have been approved by an authorized individual.

b. inspect evidence within application to determine that access to admin level privileges to make IT program changes is limited to the IT admin group.

c. Inspect a sample request for the modification of user access to an existing user during the period, to determine whether the change in user access was approved by management based on job responsibilities.