Which of the following is [NOT] true about cloud computing? a. Scalability is related to costs because if a firm were to purchase in-house computing resources to accommodate excessive demand, these rerosources become idle most of time. b. Few firms have in-house employees who match the knowledge and procedures of cloud leaders. c. It is possible for a firm to let its work run on their internal systems while they move capacity to the could. d. It eliminates the concern about data and systems security for firms since cloud providers offer a layer of security protection for their customers. e. It can increase capacity when more computing resources are needed, especially to meet an unexpected surge in demand