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
Ca oesophagus is characterized by following except? 
Select and explain. 
A. Adenocarcinoma, B. Middle 1/3 affected, C. Dysphagia is characteristic, D. Pernicious anemia often present
D: Pernicious anemia often present
Answer: D: Pernicious anemia often present 
Explanation: Answer is 'd' i.e. Pernicious anemia often present