This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Anatomy
All are features of non poisonous snakes except 
Select and explain. 
A. Usually not traiangular, B. Fangs present, C. Belly scales are small and does not cover the entire breadth, D. Head scales are large
B: Fangs present
Answer: B: Fangs present 
Explanation: Features of non poisonous snakes Usually not triangular Large head scales with some exceptions Belly scales small or moderate and does not cover the entire breadth Small and sho teeth only Tail not flat and tapering Not nocturnal Scales distal to the anal plate is divided Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 509