This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach & Duodenum, Subject name: Surgery
In Forrest classification, high-risk of bleeding is associated with all except: 
Select and explain. 
A. Visible vessel, B. Visible pulsatile bleeding, C. Adherent clot, D. Visible oozing from vessel
C: Adherent clot
Answer: C: Adherent clot 
Explanation: Rebleeding risk is high in all of the above except in case of adherent clots. Refer to the treasure for the full Forest classification