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: Radiology
Not a Radiological sign of Ulcerative colius 
Select and explain. 
A. Raspberry appearance, B. Toxic megacolon, C. Lead Pipe appearance, D. Pseudopolyps
A: Raspberry appearance
Answer: A: Raspberry appearance 
Explanation: Raspberry / rose thorm appearance is seen in crohn's disease.