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
Regarding CEA-false is - 
Select and explain. 
A. Prognostic indicator, B. Glycoprotein, C. Elevated in colorectal carcinoma, D. Elevated only when there is hepatic metastasis
D: Elevated only when there is hepatic metastasis
Answer: D: Elevated only when there is hepatic metastasis 
Explanation: Ans. is 'd' i.e., Elevated only when there is hepatic metastasis