When Running a "Run Tag Criteria" Server Task and the Box

When running a "Run Tag Criteria" server task and the box for "Reset manually tagged and excluded systems" box is checked, this would:

A) Include both systems that match and don't match.
B) Remove the tag on systems that do match the criteria.
C) Add the tag on systems that don't match the criteria.
D) Remove the tag on systems that don't match the criteria.