This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carcinogenesis, Subject name: Pathology
Mutation in malignant melanoma- 
Select and explain. 
A. N-myc, B. CDK2A, C. RET, D. None
B: CDK2A
Answer: B: CDK2A 
Explanation: Ans. is 'b' i.e., CDK2A "In melanoma cells, numbers of mutations and/or dysregulated expression of B-Rof, N-Ras, CDK2A, MDM2, PTEN, p53 have been recognized". --Textbook of carcinogenesis