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
Priapism occurs in: 
Select and explain. 
A. Snakebite., B. Ratti poisoning, C. Cantharide poisoning, D. Arsenic poinsoning
C: Cantharide poisoning
Answer: C: Cantharide poisoning 
Explanation: C i.e. Cantharide Poisoning Cantharidin is an animal poison produced by cantharides (Spanish fly or blister beetle). It causes vesicle or blister formation (on local application), strangury and priapismQ (on ingestion)