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
Pt with complains of dysphagia can take liquid only and history of smoking and weight loss 
Select and explain. 
A. Achalasia cardia, B. Barrets esophagus, C. Carcinoma esophagus, D. None
C: Carcinoma esophagus
Answer: C: Carcinoma esophagus 
Explanation: Answer- C. Carcinoma esophagus History of smoking - A risk factor for esophageal carcinoma.Dysphagia for solid food (as patient can take only liquid) - Symptom of carcinoma esophagusDysphagia more for solid than liquids occurs in :carcinoma esophagusStrictures and webs