GMAT Critical Reasoning (CR) | Re: A new form of digital memory stores larger amounts of inform

Then maybe I'm just not understanding what option D is saying...
Why do you conclude that it means businesses won't be able to use this product?

Almost 90% of the vast number of files stored by businesses are never retrieved and are stored at a high cost, but when a specific file is needed, it may contain information relevant to current issues that may be crucial to the business.