48.Which statement is TRUE?
(A) The Internet has a history of less than thirty years.
(B) Scientists set up a new network system to make computers cheaper.
(C) In the 1970s, computers became easier to use.
(D) People didn’t have enough software to get on line conveniently until the early 1990s.
(E) Even today, it is still difficult to use the Internet and not many people use it.