Check My Work Jeni works for a company that has seen rapid growth, beginning as a very small startup and expanding into a large company with what is forecasted to be thousands of employees by the end of its second year. She is trying to ensure that the fast-paced growth doesn't overburden administrators when onboarding new employees. Which of the following would require the least administrative effort in their day-to-day jobs of onboarding employees and managing permissions for these users, groups, and departments while maintaining the highest level of security? a. AAC b. DAC c. RBAC d. CAC