Which two statements about the EIGRP DUAL process are correct?（）

• A、An EIGRP route will go active if there are no successors or feasible successors in the EIGRP topology table.
• B、An EIGRP route will go passive  if there are no successors in the EIGRP topology table.
• C、DUAL will trigger an EIGRP query process while placing the flapping routes in the holddown state.
• D、A feasible successor in the EIGRP topology table can become the successor only after all the query requests have been replied to.
• E、The stuck in active state is caused when the wait for the query replies have timed out.
• F、EIGRP queries are sent during the loading state in the EIGRP neighbor establishment process.