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
Carcinoembryonic antigens (CEA) is except 
Select and explain. 
A. Lung cancer, B. Breast cancer, C. Colon cancer, D. Osteogenic sarcoma
D: Osteogenic sarcoma
Answer: D: Osteogenic sarcoma 
Explanation: Ans. is 'd' i.e. Osteogenic sarcoma