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: Forensic Medicine
Death in copper sulphate poisoning occurs due to: March 2003 
Select and explain. 
A. Renal failure, B. Cardiac arrest, C. Vascular collapse, D. Convulsions
A: Renal failure
Answer: A: Renal failure 
Explanation: Ans. A i.e. Renal failure