What is the correct command to configure default route?

A.
set route 0.0.0.0/0vrouteruntrust

B.
set route 255.255.255.255/255inte8 gate 0.0.0.0

C.
set route 0.0.0.0/0 interface e8 gateway 143.45.56.254

D.
set route 0.0.0.0/0 interface e8 next-hop 143.45.56.254

E.
set route 0.0.0.0/0 interface 143.45.56.1 gate 143.45.56.254

Explanation:

A default route is also known as the route of last resort. So if a packet on a device needs to get to a location and no other routes on the device are able to identify the next gateway for it to go to, it will use the default gateway. To add a static route using the CLI, enter thecommand :
set routeipaddress/netmaskinterfaceinterfacename
gatewaygatewayip, whereipaddressis the virtual router’s IP address,netmaskis thecirtualrouter’snetmask,
interfacenameis the next hop gateway, and gateway ip is the IP address of the next hop gateway.
In this scenario the full command wouldbe :set route 0.0.0.0/0 interface e8 gateway 143.45.56.254