When Private Wi-Fi Address is set to Rotating, the device periodically changes the private MAC address it presents to that Wi-Fi network. Apple documents that the Rotating setting changes to a different private address every two weeks, so option D is correct. The address is not the hardware MAC address defined by the device, an administrator, or a configuration profile. Instead, it is a randomized private address designed to reduce long-term tracking of the device across network activity. Apple devices generally use Fixed private addressing by default on networks using WPA2 or stronger security, while Rotating can be selected or used for networks with weak or no security. The rotation interval is specifically two weeks, not one week, which makes option C incorrect.