The Nurse Is Asked to Explain the Word Gerontology

The nurse is asked to explain the word gerontology. Which response should the nurse make?

A) It means the use of older medications to treat illnesses.
B) It comes from a Greek word that means "related to old age."
C) It focuses on the housing needs of people who are underserved.
D) It is a way of explaining health problems of people over age 50.