You have a System Center Configuration Manager 2007 environment.

You discover that some client computers in your environment are infected with malicious software.

You need to identify client computers that are infected.

What should you do?

A.
Create a package that removes the malicious software.

B.
Enable the system health validator point.

C.
Enable Network Access Protection.

D.
Create an operating system configuration item that detects the malicious software. Assign it to a configuration baseline, and associate it to a collection.