Poor Oral Hygiene Is of Concern in the Development of Bacterial

Poor oral hygiene is of concern in the development of bacterial pneumonia in the older adult nursing home population because:

A) Oral hygiene procedures can spread the disease.
B) Virulent species that cause bacterial pneumonia are found in plaque biofilm.
C) As older adults age, they develop a resistance to the disease.
D) The older adult nursing home population is susceptible to mixed infections from plaque biofilm.