STEPS done for: (A) Surveillance of incidence of non-communicable disease, (B) Surveillance of risk factors of non-communicable disease, (C) Surveillance of evaluation of treatment of noncommunicable disease, (D) Surveillance of mortality from non-communicable disease
Answer is B. STEP wise approach to surveillance (STEPS): Is a simple, standardized method by WHO for surveillance
Is of two types:

STEP-wise approach to chronic disease risk factor surveillance
STEP-wise approach to Stroke surveillance