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
Arsenophagists are : 
Select and explain. 
A. Criminals using arsenic for homicidal purpose, B. Person using arsenic as aboion stick, C. Person who can tolerate high doses of arsenic after taking arsenic in low doses at frequent intervals, D. Persons using it as cattle poison
C: Person who can tolerate high doses of arsenic after taking arsenic in low doses at frequent intervals
Answer: C: Person who can tolerate high doses of arsenic after taking arsenic in low doses at frequent intervals 
Explanation: C i.e. Persons tolerating high doses of As after taking arsenic in low doses at frequent intervals.