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': 'Which of the following is present intracellularly in muscle cells - \nSelect and explain. \nA. Insulin, B. Coicosteroid, C. Epinephrine, D. Glucagon', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Coicosteroids o Insulin, epinephrine and glucagon act on membrane receptors. o Coicosteroids act on intracellular (cytoplasmic receptors).", 'role': 'assistant'}]