A、Deploy two servers. On the two servers, deploy the Mailbox server role, the Client Access server role, and the HubTransport server role. Configure a Client Access server array. B、Deploy two servers. On the two servers, deploy the Mailbox server role, the Client Access Server role, and the HubTransport server role. Enable Outlook Anywhere on both Client Access servers. C、Deploy four servers. On two of the servers, deploy the Mailbox server role and the Hub Transport server role. On the other two servers, deploy the Client Access server role. Configure a Client Access server array. D、Deploy four servers. On two of the servers, deploy the Mailbox server role. On the other two servers,deploy the Client Access server role and the Hub Transport server role. Enable Outlook Anywhere on both Client Access servers.