C.) is thee bestest answer ^.^
Answer:
The Importance of Health Research. Like privacy, health research has high value to society. It can provide important information about disease trends and risk factors, outcomes of treatment or public health interventions, functional abilities, patterns of care, and health care costs and use.
Explanation:
elderly because with old age your body loses its ability to maintain vitamins.
The prefix is different
One is high and the other is low
