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
Radiological investigation in a female of reproductive age sould be restricted to : 
Select and explain. 
A. Period of mestruation, B. First 10 days of menstual cycle, C. Last 10 days of menstrual cycle, D. 10th to 20th day of ccle
B: First 10 days of menstual cycle
Answer: B: First 10 days of menstual cycle 
Explanation: First 10 days of menstual cycle