Final answer:
The correct answer is (c) 65; 60 to 80.
Step-by-step explanation:
The correct answer is (c) 65; 60 to 80.
In this context, older adults are individuals aged 65 years or older, or adults aged 60 to 80 years with significant chronic conditions.
This definition is consistent with the commonly accepted definition of old age in the United States, which is around 65 years old.