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
Paris green is a ? 
Select and explain. 
A. Stomach poison, B. Contact poison, C. Repellent, D. Rodenticide
A: Stomach poison
Answer: A: Stomach poison 
Explanation: Ans. is 'a' i.e., Stomach poison