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: Pharmacology
[{'content': 'With which of the following theophylline has an antagonistic interaction ? \nSelect and explain. \nA. Histamine receptors, B. Bradykinin receptors, C. Adenosine receptors, D. Imidazoline receptors', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Adenosine Receptors", 'role': 'assistant'}]