Imagine that a host with IP address 150.55.66.77 wishes to download a file from the web server at IP address 202.28.15.123. Select a valid socket pair for a connection between this pair of hosts.
A.150.55.66.77:80 and 202.28.15.123:80
B.150.55.66.77:150 and 202.28.15.123:80
C.150.55.66.77:2000 and 202.28.15.123:80
D.150.55.66.77:80 and 202.28.15.123:3500
正确答案是C