A newly implemented wireless network is designed so that visitors can connect to the wireless network for business activities. The legal department is concerned that visitors might connect to the network and perform illicit activities. Which of me following should the security team implement to address this concern?

Adding a guest captive portal that requires visitors to accept terms and conditions directly addresses the legal department's concern about illicit activities. This portal presents a legal agreement that users must acknowledge before gaining network access, creating a legal basis for holding them accountable for their actions on the network. Configuring a RADIUS server primarily manages authentication, not legal accountability for user actions. While 802.1X enhances security by authenticating devices, it doesn't establish a legal agreement with guest users regarding acceptable use. Allowing WPS (Wi-Fi Protected Setup) is a security risk as it's vulnerable to brute-force attacks and doesn't provide any legal framework for guest usage.