Final answer:
The Access Control Boundary is the subscription boundary that allows the application of access-management policies and the creation of separate subscriptions to align with different organizational structures. The correct option is B.
Step-by-step explanation:
The Access Control Boundary can apply access-management policies at the subscription level and allows you to create separate subscriptions to reflect different organizational structures. The Access Control Boundary helps to control who can access and manage resources within a subscription. The subscription boundary that can apply access-management policies at the subscription level, and allows the creation of separate subscriptions to reflect different organizational structures, is known as the Access Control Boundary.
This boundary is designed to help organizations manage and segregate resources for billing, management, and compliance purposes. Companies often use separate subscriptions under a single billing boundary to isolate different departments, projects, or environments, such as production and development, to maintain better control over their cloud resources.