This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Biochemistry
[{'content': 'which absorbs least water \nSelect and explain. \nA. Mucilage, B. Hemi cellulose, C. lignin, D. Pectin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ref : lipincott', 'role': 'assistant'}]