How is physical security relevant to cloud networking?

A. The cloud application vendor must have a secure data facility, including locking their front door and preventing unauthorized personnel from accessing multi - tenant cages.
B. A physical compromise in your on - premise network could lead to a compromise in your cloud environment.
C. In the shared security model, customers are responsible for physically securing entities in their cloud environment.
D. Private cloud environments have more stringent physical security requirements than public cloud environments.