If Therapeutic Interventions Are Not in Place and Disease Progress

If therapeutic interventions are not in place and disease progress has not been arrested,high caries risk for ages 6 years and older/adult is indicated by any one of the following except which one?

A) Teeth with frank cavitations or lesions that radiographically show penetration into dentin
B) Approximal radiographic lesions confined to the enamel only
C) Visual white spots on smooth surfaces
D) Inadequate saliva flow