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
True statement regarding amoebic dysentry 
Select and explain. 
A. Incubation period 7-10 days, B. Profuse, watery diarrhoea, C. Diagnostic mucosal lesion most common in rectum, D. Diagnostic mucosal findings on sigmoidoscopy
D: Diagnostic mucosal findings on sigmoidoscopy
Answer: D: Diagnostic mucosal findings on sigmoidoscopy 
Explanation: None