Are these machines correctly configured for a Cluster XL deployment?

You are preparing computers for a new Cluster XL deployment.

For your cluster, you plan to use four machines with the following configurations:

Cluster Member 1: OS: Secure Platform, NICs: Quad Card, memory: 1 GB, Security Gateway only, version: R76

Cluster Member 2: OS: Secure Platform, NICs: 4 Intel 3Com, memory: 1 GB, Security Gateway only, version: R76

Cluster Member 3: OS: Secure Platform, NICs: 4 other manufacturers, memory: 512 MB, Security Gateway only, version: R76

Security Management Server: MS Windows 2003, NIC. Intel NIC (1), Security Gateway and primary Security Management Server installed, version: R76

Are these machines correctly configured for a Cluster XL deployment?
A . No, the Security Gateway cannot be installed on the Security Management Pro Server.
B . No, Cluster Member 3 does not have the required memory.
C . Yes, these machines are configured correctly for a Cluster XL deployment.
D . No, the Security Management Server is not running the same operating system as the cluster members.