Storage and retention policies will determine how long you keep records (such as records of customers Web activity), how you will store them, and how you will dispose of them. This will allow you to know what records you should still have on hand should a legal request for such records come in. Answer: C is incorrect. User policies might determine what a customer has access to, but won't help you identify what they actually did access. Answer: A is incorrect. Group policies are usually pertinent to network administration, not the open and uncontrolled environment of an ISP. Answer: B is incorrect. Backup policies dictate how data is backed up and stored.