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
[{'content': 'Caustic poison erodes mucosa because - \nSelect and explain. \nA. Glue like action, B. Hygroscopic in nature, C. High affinity for mucosa, D. Being programmed to stick', 'role': 'user'}, {'content': 'Answer: B \nExplanation: caustic soda is sodium hydroxide * In concentrated form, alkali acts as corrosive and in dilute form they act as irritant strong alkalis absorbs water from tissues and precipitates protein * Strong alkali produces liquefaction necrosis and causes saponification of fats and dissolves proteins thus causing deep penetration in the tissue resulting in extensive tissue destruction REF;THE SYNOPSIS OF FORENSIC MEDICINE:KS NARAYANA REDDY;28th EDITION;PAGE NO302', 'role': 'assistant'}]