What Has Research Evidence Indicated Are the Effects of Computer-Assisted

What has research evidence indicated are the effects of computer-assisted instruction, learning to program, and other uses of computers?

A) They have produced few identifiable benefits, although no negatives have been found either.
B) They have produced benefits intellectually and academically, but peer relations suffer because of the isolation that occurs with use.
C) They have increased learner enjoyment, but no intellectual or academic benefits have been reported.
D) They have produced positive outcomes motivationally, intellectually, academically, and socially.