A. Central AP management requires more complex configurations
B. Unique SSIDs cannot use the same authentication method
C. It supports autonomous and lightweight APs
D. It eliminates the need to configure each access point individually

The correct answer is D. It eliminates the need to configure each access point individually.

A Cisco Wireless LAN Controller (WLC) provides centralized management for access points (APs) in a wireless network. By using a WLC, administrators can configure and manage multiple APs from a single interface, eliminating the need to configure each AP individually. This centralized management simplifies network administration, improves consistency in configurations, and enhances overall network security and performance.