Question 18.

Option A: The author has already discussed a point along similar lines towards the end of the passage: {...There is also the reality that in our culture of increasing isolation, in which so many of the traditional gathering places and social structures have disappeared, screens are filling a crucial void...}. Hence, the author definitely considers this as one of the causes behind the increase in screen time.

Option B: The discussion in passage 4 and 5 highlights how the tech companies have {perhaps successfully} convinced schools to integrate a screen-based educational culture to prepare students for a "screen-based future". Thus, this is another factor that the author attributes to the rise in screen time.

Option C: This aspect has been discussed towards the end of the passage: {...There is a small movement to pass a “right to disconnect” bill, which would allow workers to turn their phones off, but for now, a worker can be punished for going offline and not being available...}. Hence, the author considers this as another factor contributing to the increase in screen time. 

Option D: There is no discussion mentioning or detailing the elements presented in D. Thus, we cannot conclusively comment on whether the author is likely to agree with this point. 

Hence, Option D is the correct answer.