For the purposes of customer relationship management, Costco is planning to collect data of customers and their purchases to provide better services. Which kind of data storage should they prefer? An on-premises data facility or a cloud data facility? Why?
(a) On-premises data facility, for better control.
(b) Cloud data facility, for scalability and accessibility.
(c) On-premises data facility, for cost-effectiveness.
(d) Cloud data facility, for data security.