Where are the default settings for the useradd command kept?

A.
/etc/default/useradd

B.
/etc/sysconfig/useradd.cfg

C.
/etc/.useradd

D.
/etc/defaults/useradd

E.
/etc/login.defs

Explanation:
useradd creates a new user account using the default values from /etc/default/useradd