Correct : b

The correct answer is Option B - (i) is TRUE and (ii) is FALSE.
Statement (i) - ARP provides a mapping from IP address to hardware address: TRUE. ARP (Address Resolution Protocol) is specifically designed to resolve a 32-bit IPv4 address to its corresponding 48-bit MAC (hardware/link-layer) address on the same local network. A device broadcasts an ARP request, and the device with the matching IP replies with its MAC address.
Statement (ii) - A single TCP segment cannot carry both data and ACK: FALSE. TCP absolutely supports carrying both data and an acknowledgement in the same segment - this is called piggybacking. In a bidirectional TCP connection, when S sends data to R and also needs to acknowledge data received from R, it combines both into one segment. This is standard TCP behavior and improves network efficiency by reducing the number of segments transmitted.
So statement (i) is correct and statement (ii) is wrong - making Option B the answer.