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: Gynaecology & Obstetrics
Acanthosis Nigricans associated with malignancy has 
Select and explain. 
A. Localised skin involvement, B. Abrupt onset, C. Resolves spontaneously, D. Involves neck and axilla only
B: Abrupt onset
Answer: B: Abrupt onset 
Explanation: Acanthosis Nigricans associated with malignancy has extensive skin involvement and sudden onset.