The correct option is B Liver
Prussic acid, also known as hydrogen cyanide or HCN, is a chemical compound both useful and dangerous. Hydrogen cyanide is extremely poisonous to mammals and high concentrations can kill a human being within a few minutes. The liver is able to detoxify some cyanide via a reaction catalyzed by the enzyme rhodanese. Cyanide reacts with thiosulfate to produce thiocyanate. Thus, the correct answer is option C.