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: Medicine
Flask shaped ulcers are seen associated with: 
Select and explain. 
A. Bacillary dysentery, B. Amoebiasis, C. Typhoid, D. Tuberculosis
B: Amoebiasis
Answer: B: Amoebiasis 
Explanation: None