This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Definition and Concepts in Sociology & Psychology, Subject name: Social & Preventive Medicine
All of the following are temporary social groups except? 
Select and explain. 
A. Mob, B. Crowd, C. Band, D. Herd
C: Band
Answer: C: Band 
Explanation: Temporary Social Groups: Crowd Group of people come together temporarily, for a sho period, motivated by a common interest or curiosity (e.g., to witness a football match) Lacks internal organization & leadership; When interest is over, crowd disperses. Mob It is crowd with a leader, who forces members into action & is more emotional than crowd. There may be symbol like flag/slogan. It is unstable,without internal organization; When purpose is achieved, group disperses Herd Crowd with a leader whose orders are followed without questions by group members. Eg: tourist group under a guide. Permanent Spatial Groups Band Village Towns & cities State