A user has an application server LPAR with a physical Ethernet adapter. They want to have a database LPAR also connected to the application LPAR via virtual Ethernet. Their security policies require a firewall between the application LPAR and database LPAR.
Which of the following virtual Ethernet configurations satisfies the customer’s requirements？（）

A.The application server，firewall，and database server on the same VLAN
B.The application server and firewall on one VLAN，and the database server on a second VLAN
C.The application server on one VLAN，and the database server and firewall on a second VLAN
D.The application server and firewall on one VLAN，and the firewall and database server on a second VLAN