Answer:
The correct answer is letter "B": Gerontographics.
Explanation:
Gerontographics refers to the study of elders according to their physical health. Gerontographics also considers old people's mental outlook. The information collected thanks to Gerontographics is used in the health industry. Gerontographics classify elders in four (4) groups: healthy indulgers, ailing outgoers, frail recluses, and healthy hermits.