This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumours of skin, Subject name: Dental
[{'content': 'Cobimetinib is approved for treatment of? \nSelect and explain. \nA. BCC, B. Melanoma, C. Squamous cell carcinoma, D. Vitiligo', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cobimetinib is approved for RX of melanoma in patients with unresectable or metastatic melanoma with BRAF V600E or V600K mutation, in conjunction with Vemurafenib. Cobimetinib - Reversible inhibitor of mitogen-activated protein kinase (MAPK)/extracellular signal regulated kinase.', 'role': 'assistant'}]