This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
Which of the following is not a predisposing factor for Esophagus Ca 
Select and explain. 
A. Tylosis, B. Achalasia, C. Barrett's esophagus, D. Esophageal varices
D: Esophageal varices
Answer: D: Esophageal varices 
Explanation: Diet heavy smoking Alcohol Food contaminated with fungus Vitamin deficiency Oesophageal disorders oesophagitis Achalasia Hiatus hernia Diveicula Plummer-Vinson syndrome Others Race japanese and chinese Family history tylosis Genetic factors coeliac disease, epidermolysis bullosa, tylosis HPV infection TEXTBOOK OF PATHOLOGY HARSH MOHAN 6TH EDITION PAGE NO:541