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': 'The Similarity between Vit C & Vit K is : \nSelect and explain. \nA. Both help in conversion of proline to hydroxy-proline, B. Both help in post-translational modification, C. Both have anti infective activity, D. Both are involved in coagulation cascade', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Both help in post translational modification', 'role': 'assistant'}]