Final answer:
The auditor should assess control risk as low for an assertion after performing software-based audit techniques on controls relevant to that assertion and assessing the adequacy of segregation of duties.
Step-by-step explanation:
When faced with concerns about the adequacy of the control environment, the auditor should assess control risk as low for an assertion after performing software-based audit techniques on controls relevant to that assertion and assessing the adequacy of segregation of duties. This means that the auditor should evaluate the effectiveness of the programmed application controls related to the occurrence of sales and also consider the overall control consciousness at the organization. Assessing control risk as low would imply that the auditor believes the controls are reliable and can be relied upon for conducting the audit.