Which of the following statements is true regarding OSPF adjacencies and link-state database synchronization?
A . Full adjacency occurs when OSPF routers reach the LOADING state.
B . The adjacency relationship begins in the EXSTART state.
C . All OSPF neighbors establish adjacencies in the FULL state with all other routers on the broadcast network.
D . The INU state indicates that a router has received a Hello packet from a neighbor and has seen their own ROUTERID in the Hello packet.
Answer: B