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
Cobimetinib is approved for treatment of? 
Select and explain. 
A. BCC, B. Melanoma, C. Squamous cell carcinoma, D. Vitiligo
B: Melanoma
Answer: B: Melanoma 
Explanation: 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.