Answer:A)Robert Kahn
Explanation: Vinton Cerf and Robert Kahn are the two inventor who are responsible for the invention of the the internet facility with the protocols .
Vinton Cerf is the person who introduce the TCP/IP protocols and the internet services through the architecture. He had a co-inventor or colleague named Robert Kahn who also helped in the introduction of the TCP/IP protocols from the DARPA program structure.He also made people realize about the importance about the packet-switching technique.
