What reasoning was given for the following: why is the "data storage to price ratio" relevant to big data?
A. Access of larger storage becomes easier for everyone, which means client-facing services require very large data storage.
B. It isn't, it was just an arbitrary example on big data usage.

C. Larger storage means easier accessibility to big data for every user because it allows users to download in bulk.
D. Companies can't afford to own, maintain, and spend the energy to support large data storage unless the cost is sufficiently low.