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: Forensic Medicine
Diffusion of oxygen at the tissue level is affected in all the following poisoning except - 
Select and explain. 
A. Carbon monoxide, B. Curane, C. Phosgene, D. Cyanides
B: Curane
Answer: B: Curane 
Explanation: Peripheral nerve poison, e.g. curare Asphyxiants, e.g. carbon monoxide,CO2,H2S,phosgene(war gas),cyanides REF;THE SYNOPSIS OF FORENSIC MEDICINE:KS NARAYANA REDDY;28th EDITION;PAGE NO 361