The National Institutes of Health conducts research to discover causes and treatments for diseases. Which agency is this?

• A. National Institutes of Health
• B. Health Resources and Services Administration
• C. Health Promotion
• D. TRICARE

Answer: (A)

The agency described is the National Institutes of Health, the U.S. government's primary biomedical research organization. NIH conducts and funds research to uncover how diseases arise and to develop new treatments, making it the central body for understanding disease mechanisms and advancing medical therapies. The other options don’t fit: the Health Resources and Services Administration focuses on improving access to health care and workforce issues rather than conducting biomedical research; “Health Promotion” isn’t an agency name in the federal structure; and TRICARE is the military health care program for service members and their families, not a research agency.