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 hydroxyproline, 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: Both vitamin C and vitamin K are required for post-translational modification.\nVitamin C is required for post-translational modification of proline and lysine in collagen synthesis.\nVit K is required for post-translational modification of glutamate residue for generation of clotting factors.', 'role': 'assistant'}]