Which Oracle Solaris 1l milestone is equivalent to run level 2 on an Oracle Solaris 10 or earlier system?

Which Oracle Solaris 1l milestone is equivalent to run level 2 on an Oracle Solaris 10 or

earlier system?

A.
svc:/milestone/single-user:default

B.
svc:/milestone/multi-user:default

C.
svc:/milestone/multi-user-server:default

D.
svc:/milestone/network:default