In which scenarios would Huawei firewall USG be deployed?

Huawei’s USG firewalls, per HCSA-Sales-IP Network V6.0, are deployed in data center networks (A) for protecting core infrastructure, campus networks (B) for enterprise security, and branch networks (D) for distributed sites. Virtual machines (VM, C) are not a deployment scenario for USG, as it is a physical or virtualized appliance, not specifically tied to VM hosting. Thus, A, B, and D are correct.References: HCSA-Sales-IP Network V6.0, USG Firewall Deployment Scenarios.