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
All of the following are true about Krukenberg's tumor except: 
Select and explain. 
A. Has a rough surface, B. Shape of ovary is maintained, C. Usually bilateral, D. Arises usually form stomach carcinoma
A: Has a rough surface
Answer: A: Has a rough surface 
Explanation: None