Answer :
It would be C because encyclopedias have a ton of useless info and just a little or nothing at all about fashion, and newspaper articles could be a little helpful but would have more info about weather than fashion.
I would choose the books on fashion design because they would give you all you could possibly want just on that one subject and you could go as far back as you wanted, but now if you got an encyclopedia who would have to look for it first and once you found it the information would be very limited and short. Readers guide and newspaper articles really wouldn't give you anything either.