Which two statements are true regarding EIGRP?（）

• A、Passiveroutes are in the process of being calculated by DUAL.
• B、EIGRP supports VLSM, route summarization, and routing update authentication.
• C、EIGRP exchanges full routing table information with neighboring routers with every update.
• D、If the feasible successor has a higher advertised distance than the successor route, it becomes the primary route.
• E、A query process is used to discover a replacement for a failed route if a feasible successor is not identified from the current routing information.