What best describes BRFSS and NHANES?

• A. BRFSS is a state-based telephone survey collecting behavioral risk factors; NHANES is a national survey collecting health and nutrition data with physical exams and labs.
• B. BRFSS collects only clinical measurements; NHANES collects only dietary surveys.
• C. BRFSS and NHANES are both hospital-based studies with genetic sequencing.
• D. BRFSS is a national environmental data system; NHANES is a local health survey.

Answer: (A)