Media are not just passive channels of information. Not only do they supply the stuff of thought, but they also shape the process of thought. And what the Internet seems to be doing is chipping away our capacity for concentration. Which of the following if true, would most strengthen the argument presented above ?
(d) The given passage says (1) media supplies the stuff of thought. (2) it shapes the process of though. (3) internet has reduced our capacity to concentrate→ this is stated/exemplified in (d). Therefore, it strengthens the given argument.