In the development of the Internet, there are many milestones. In the following options, which order of the milestones is normal?
A . Establishment of the TCP/IP protocol specification – the birth of ARPANET – www officially open to the public – the birth of DNS
B . www officially open to the public – the birth of DNS – the establishment of the TCP/IP protocol specification – the birth of ARPANET
C . The birth of ARPANET – the establishment of the TCP/IP protocol specification – the birth of DNS – www officially open to the public
D . The birth of DNS – the establishment of the TCP/IP protocol specification – the birth of ARPANET – www officially open to the public
Answer: C