A network administrator is troubleshooting an EIGRP connection between RouterA， IP address10.1.2.1， and RouterB， IP address 10.1.2.2. Given the debug output on RouterA， which twostatements are true？（）
- ARouterA received a hello packet with mismatched metric-calculation mechanisms
- BRouterA received a hello packet with mismatched authentication parameters
- CRouterA will form an adjacency with RouterB
- DRouterA received a hello packet with mismatched autonomous system numbers
- ERouterA received a hello packet with mismatched hello timers
- FRouterA will not form an adjacency with RouterB