You have been asked to configure your MX240 with a default route toward your upstream ISP at IP address 192.168.100.1. Which command successfully completes this task?（）

A.user@router# set routing-options static route 0.0.0.0/0 next-hop 192.168.100.1

B.user@router# set routing-options default route 0.0.0.0/0 next-hop 192.168.100.1

C.user@router# set forwarding-options static route 0.0.0.0/0 next-hop 192.168.100.1

D.user@router# set protocols default route 0.0.0.0/0 next-hop 192.168.100.1