This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification of carbohydrate, Subject name: Biochemistry
[{'content': 'Parent alcohol in carbohydrates is : \nSelect and explain. \nA. Glycerol, B. Ethanol, C. Methanol, D. Cholesterol', 'role': 'user'}, {'content': "Answer: A \nExplanation: Parent alcohol in carbohydrates is Glycerol. Parent carbohydrate, which gives rise to all other carbohydrates. Eg D-Glyceraldehyde. Most abundant organic molecule in nature: Carbohydrates Most abundant monosaccharide in nature: D-Glucose Minimum number of carbons possible in a Carbohydrate is 3. Minimum number of 'OH' group possible in a Carbohydrate is 2. Minimum number of functional groups possible in a Carbohydrate is 1.", 'role': 'assistant'}]