Consider the three-way handshaking process followed during TCP connection establishment between two hosts A and B. Let S and R be two random 32-bit starting sequence numbers chosen by A and B respectively. Suppose A sends a TCP segment having SYN bit = 1, SEQ number = S and ACK bit = 0 and B accepts the connection request.

Which one of the following choices represents the information present in the TCP segment header that is sent by B to A ?