The correct answer to the question is:
OC. The Department of Health and Human Services
Explanation:
1. The Department of Health and Human Services is an executive department of the U.S. government that directs policies related to health and social services.
2. It oversees agencies like the Food and Drug Administration (FDA), the Centers for Disease Control and Prevention (CDC), and the National Institutes of Health (NIH), among others.
3. These agencies focus on specialized areas of policy within the broader scope of health and human services, making the Department of Health and Human Services an example of an executive department that directs specialized policy areas.