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: Biochemistry
[{'content': 'Chemical process involved in conversion of nor-adrenaline to adrenaline ? \nSelect and explain. \nA. Hydroxylation, B. Carboxylatio, C. Methylation, D. Dehydrogenatio', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is `c' i.e., Methylation", 'role': 'assistant'}]