The suggested answer is A.
The local router has not established a TCP session with 100.64.3.1, which is indicated by the state 'Active'. 'Active' means the router is trying to establish a TCP connection on port 179 but has not succeeded yet. Other states like 'Idle', 'Connect', 'OpenSent', 'OpenConfirm', and 'Established' would indicate different phases of the BGP session establishment.