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: Surgery
The which of the following genes are mutated in development of colon ca. According to vogelstein edenoma carcinoma theory 
Select and explain. 
A. Beta catenin, B. K RAS, C. APC, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None