Use Testlet B to Answer the Following Questions

Use Testlet B to answer The Following questions
TESTLET b
The director of the Vintage Retirement Center contacts the local dental hygienists' society to provide a seminar on oral health. The facility has a population of 100 well residents between the ages of 60 and 78 years who have a middle SES. Twenty percent of the residents are edentulous, and the remaining 80% have varying numbers of teeth present. The oral health assessment results revealed a mean PlI of 2.1, mean DMFT of 5.2, mean D of 0, RCI of 2.1, and untreated root caries of 1.5. Correlation analysis revealed a correlation coefficient of r 0.81 for the relationship between the RCI and PlI in this group. Seventy percent of the residents have a dental home and report having regular dental care. Less than 10% of them report mild signs and symptoms of xerostomia.
-What level of oral hygiene is revealed by the mean PlI?

A) No plaque present
B) Slight plaque present
C) Moderate plaque present
D) Severe plaque present
E) Cannot be determined from the information provided