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 used to treat Laron's dwarfism \nSelect and explain. \nA. Sermorelin, B. Tesamorelin, C. Mecasermin, D. Ganirelix", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Mecasermin is IGF - 1 analogue used to treat Laron dwartism. Laron syndrome is characterized by mutation of growth hormore receptor and hence growth hormone analogues can not be used.', 'role': 'assistant'}]