In a Study of Patients Who Have Dementia,a Researcher Wishes

In a study of patients who have dementia,a researcher wishes to examine the effects of moderate exercise on patients' abilities to perform self-care.The researcher decides to use subjects between 70 and 80 years of age who have been diagnosed with dementia for less than 1 year.A patient who is 65 years old meets

A) eligibility criteria.
B) exclusion criteria.
C) inclusion criteria.
D) sampling criteria.