多项选择题nyourCiscoEIGRPnetwork,younoticethattheneighborrelationshipbetweentwoofyourrouterswasrecentlyrestarted.Whichtwoofthesechoicescouldhavemadethisoccur?()
A.An update packet with init flag set from a known, already established neighbor relationship was received by one of the routers.
B.The ARP cache was cleared.
C.The counters were cleared.
D.The IP EIGRP neighbor relationship was cleared manually.