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': 'Interaction involved in primary structure of protein ? \nSelect and explain. \nA. Hydrogen bond, B. Disulfide bond, C. Peptide bond, D. Electrostatic bond', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is `c' i.e., Peptide bond", 'role': 'assistant'}]