Which statement about OSPF is false?
A. Hello packets are used to discover and maintain neighbor relationships. On a broadcast network or an NBMA network, Hello packets can also be used to elect a
DR and a BDR.
B. DD packets describe summary LSDB information by carrying LSA headers.
C. The intervals at which two routers send Hello packets must be consistent; otherwise, a neighbor relationship cannot be established between them.
D. DD packets contain headers of all LSAs for periodic LSDB synchronization between OSPF neighbors.