what is the default shell?

Your system is newly built and has a default set up. When you add an account using roleadd, what
is the default shell?

A.
/usr/bin/sh

B.
/usr/bin/ksh

C.
/usr/bin/pfsh

D.
/usr/bin/prsh

E.
/usr/bin/pfjsh

F.
/usr/bin/prksh