Critical Reasoning

Well this is from kaplan CAT 4
This was first question in the my CAT and after thinking for 4 minutes i still made mistake


OA is E

BUT
i think for this to be true QUESTION SHOULD HAVE THIS ASSUMPTION
ONLY those are COMPACT DISCS in which we get songs and other materials performed by artist.
or
ALL compact discs have songs or other thing performed by artist (rather than being a electronic medium)


Does compact disc mean that?
Well i have reading CD disc means optical media that carries electronic data(not necessarily things performed by artist).

Now,as being computer user,i have seen Compact discs with softwares,photos(which has nothing to take with price artist takes).So how is this answer correct.
The question doesnt says it is taking about CD of songs.

I think there should be some extra info in question for this answer to be right.Otherwise,suppose if it was CD with softwares or even BLANK CD how will that E make sense?

thanks