A local T-shirt design shop, with locations all around your state, wants to benefit from "big data." Given each of the following situations, is it a volume, velocity, or variety issue? Why?
a. The owner of the design shop wants to have comments collected from social media sources integrated into the firm's database.
b. The owner of the design shop wants to match sales data to the reordering process to make sure she can always be in the best position to match consumer demand for her T-shirts.
c. Instead of having all the stores maintain individual sales totals, the owner wants overall sales data across all stores, broken down by shirt color, size, and design type, available at the corporate headquarters.