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
Criteria for slaughter house ? 
Select and explain. 
A. Glass area should be 25% of floor area, B. Window ledes sloped 25deg, C. Doorways 1 meter high, D. None of the above
A: Glass area should be 25% of floor area
Answer: A: Glass area should be 25% of floor area 
Explanation: Ans. is 'a' i.e., Forcing of knowledge into mind