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: Pathology
Usual size of a chocolate cyst of the ovary is about? 
Select and explain. 
A. 1 inch in diameter, B. 2 inches in diameter, C. 4 inches in diameter, D. 6 inches in diameter
B: 2 inches in diameter
Answer: B: 2 inches in diameter 
Explanation: Ans. is 'b' i.e., 2 inches in diameterIt is 3-5 ems.