This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Dietary fibre contains: \nSelect and explain. \nA. Collagen, B. Pectin, C. Proteoglycans, D. Starch', 'role': 'user'}, {'content': "Answer: B \nExplanation: B i.e. PectinDietary Fiber consists of all plant cell wall components that cannot be digested by animals' own enzymes. These include :1. CelluloseQ 4. Gums Q2. Hemicellulose Q 5. PectinsQ3. LigninQ 6. Pentosans QHigh fiber diet aids water retention during passage of food along the gut, producing larger & softer faeces; thereby also reducing the stool transit time. Q", 'role': 'assistant'}]