By saying that using the computer for interpersonal communication was a "reinvention" (in the second paragraph), the author means that ______.

A．the use of an v-mail represented a big leap in computer application
B．the computer technology was readily adaptable to recreational activities
C．computer-to-computer information had to be digitalized before it was sent out
D．the computer had to go through big technological innovations before it was used for interpersonal communication