Correct Answer: BBrowser-Based Authentication is the best fit for an environment where users may use either company-issued or personal laptops that the administrator cannot manage. This method does not require any software to be installed on the users' devices and works through a Captive Portal, where users can authenticate through a web browser using their username and password. This approach is suitable for both managed and unmanaged devices, providing flexibility and ensuring that identity awareness can be enforced without needing direct control over the user devices.