What is the primary purpose of implementing role-based access control (RBAC) in a system?

What is the primary purpose of implementing role-based access control (RBAC) in a system?
A . To ensure all users have the same level of access to system resources.
B . To provide users with access based on their specific role within an organization.
C . To allow unrestricted access to system settings for all users.
D . To monitor user activities on the system in real-time.

Answer: B