4. Entities may implement different types of internal controls. Some are entity-wide, while others are more specic. Which of the following is an example of an entity-wide intemai control? a. The IT manager assigns network user names and initial passwords to each user, and the system settings require the passwords to be changed monthly. h. The bookkeeper is required to complete a weekly hank reconciliation. The reconciliations are reviewed and initialled hy the treasurer at the end of each month. c. The user settings on the general ledger permit the CEO read-only access to the general ledger. She cannot make or modify entries. d. Each month. the accounting department provides each department manager with a statement of expenses. The department managers are required to provide the CED with explanations for variances greater than 5%