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
Antidote for oxalic acid poisoning: 
Select and explain. 
A. BAL, B. Animal charcoal, C. Calcium gluconate, D. Magnesium
C: Calcium gluconate
Answer: C: Calcium gluconate 
Explanation: C i.e. Calcium gluconate