Sony's PlayStation 4(PS 4) is widely acknowledged as the best gaming console of 2016. Only those games that are compatible with Sony's proprietary authentication software can be played in the console. The only form of "in-person" purchase of these games can be done at authorized outlets and these stores sell games in the form of DVDs. PlayStation 4 users must be borrowing games DVDs from their friends since, despite PlayStation 4 accounting for the highest number of console sales in 2016, PS 4 game DVDs only account for a small fraction of the games sold as DVDs this year.
What assumption does the author make while drawing his conclusion?
A. Sony's proprietary authentication software does not make the console users less likely to purchase games.
B. A significant proportion of console buyers aren't purchasing and downloading the games online, and hence not nullifying the necessity for an in-person DVD purchase.
C. The number of PS 4 games released in 2016 is similar to the number of PS4 games released in the prior years.
D. The buyer of PS 4 games is not different from the buyer of other gaming consoles, who possess a number of games.
E. Sales of PS 4 consoles has not decreased from 2015 to 2016.