In SSL Handshake Protocol, What Is the Role of Server

In SSL handshake protocol, what is the role of Server Key Exchange message?

A) server key exchange message indicates that the server has finished sending all the information
B) in the server key exchange message, it contains set of parameters required for completing key exchange
C) it contains an X.509 certificate in server key exchange message, the public key is contained in the certificate, which is issued to the client to verify signatures or to encrypt messages when key exchange
D) in the server key exchange message, it contains the negotiated CipherSuite which is copied to the state of the current connection