This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
[{'content': 'Receptors are located in the nucleus for all the following except \nSelect and explain. \nA. Insulin, B. Vitamin D, C. Thyroxine, D. Vitamin A', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Insulin receptors are enzyme-linked tyrosine kinase receptors on cell surface. nuclear or cytosolic receptors include steroid hormone,vit A, vit D, thyroid hormones Ref: HL Sharma 3rd ed Pg 66', 'role': 'assistant'}]