This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
An example of a tumour suppressor gene is 
Select and explain. 
A. myc, B. fos, C. ras, D. Rb
D: Rb
Answer: D: Rb 
Explanation: Robbins basic pathology 9th edition page no 182, Retinoblastoma gene is the first tumour suppressor gene to be discovered.