Which three commands are valid ways to start a NIS server?

Which three commands are valid ways to start a NIS server? (Choose three.)

A.
svcadm enable nis

B.
svcadm enable nis/server

C.
/usr/lib/netsvc/yp/ypserv

D.
/usr/lib/netsvc/yp/ypstart

E.
svcadm enable svc:/network/nis/server