What is the meaning of the SYN$+$ACK handshake in the $3-$way handshake?

$\_\_\_$ The server is asking for a synchronization request before the request can be accepted.

$\_\_\_$ The request is confirmed and the server is making a connection request.

$\_\_\_$ The client is asking the server to accept the synchronization request.

$\_\_\_$ The server is asking the client to send a connection request again.