Where are the Windows NT registry files maintained?

A.
In the root directory.

B.
In %systemroot% \win NT.

C.
In %configroot%\

D.
In %systemroot%\config.

Explanation:
The registry file is kept in the config directory of the system root.
Incorrect Answers:
A: The registry files are kept in the config directory of the system root, not directly in theroot itself.
B: Actually, there should not be a Winnt directory. If the system was installed in thedirectory Winnt,
then Winnt would be part of the %systemroot% variable, so Winntwould be more than redundant.
However, the registry files are maintained in the Configdirectory.
C: %configroot% is not a known variable, and does not resolve to anything.