When Using the Gatewaying/direct Routing Forwarding Method of Linux Virtual

When using the gatewaying/direct routing forwarding method of Linux Virtual Server (LVS) , which of the following statements is true?

A) The default route of all backend servers must point to the LVS host.
B) Every backend server must accept packets addressed to the IP address of the virtual service.
C) On the backend servers, all packets appear to originate from the IP address of the LVS host.
D) The link layer addresses of all backend servers must be included in the LVS configuration.
E) When using gatewaying/direct routing, only the round robin algorithm is available.