During the establishment of the LDP session, the openSent state will be experienced. When the openSent state receives the Initialization message and then sends the keepAlive Message, its state will migrate to:

During the establishment of the LDP session, the openSent state will be experienced. When the openSent state receives the Initialization message and then sends the keepAlive Message, its state will migrate to:
A . Initialization
B . Openrec
C . operational
D . Non-existent

Answer: B