This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
Wellen's syndrome suggests 
Select and explain. 
A. Stable angina, B. Unstable angina, C. Lugwig's angina, D. Prinzmetal angina
B: Unstable angina
Answer: B: Unstable angina 
Explanation: .