This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
The degree to which a specific health care intervention achieves its objectives, when applied in a given population, is termed as its - 
Select and explain. 
A. Sensitivity, B. Effectiveness, C. Efficiency, D. Impact
B: Effectiveness
Answer: B: Effectiveness 
Explanation: Ans. is 'b' i.e., Effectiveness