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
Most common type of Bening overian tumour during pregnancy is : 
Select and explain. 
A. Simple serous cystoid, B. Mucinous cystoid, C. Teratoma, D. Papillary cystadenoma
A: Simple serous cystoid
Answer: A: Simple serous cystoid 
Explanation: Simple serous cystoid