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
According to Maslow’s hierarchy of needs, following is at the top of pyramid 
Select and explain. 
A. Physical needs, B. Self actualization, C. Safety, D. Esteem recognition
B: Self actualization
Answer: B: Self actualization 
Explanation: Social Pathology : Is the study of social problems which undermine the social, psychological or economical health of the populations; it is used to describe relationship between disease and social conditions.
Social pathology is uncovered by 'Social surveys'.