You need to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface of the router for this connection?

A) Router (config-if) #encapsulation frame-relay q933a

B) Router (config – if) #encapsulation frame-relay ansi

C) Router (config – if) #encapsulation frame-relay ietf

D) Router (config – if) #encapsulation frame-relay cisco