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: Surgery
Features of Raynaud's disease are all except 
Select and explain. 
A. Common in young females, B. Commonly unilateral, C. Repeated attacks occur, D. Peripheral pulses are normally felt
B: Commonly unilateral
Answer: B: Commonly unilateral 
Explanation: Raynaud's disease is usually Bilateral.