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
One of the following features can be used to define contracted pelvis: 
Select and explain. 
A. Transverse diameter of inlet is 10 cm, B. AP diameter of inlet is 12 cm, C. Platypelloid pelvis, D. Gynaecoid pelvis
A: Transverse diameter of inlet is 10 cm
Answer: A: Transverse diameter of inlet is 10 cm 
Explanation: Minimal/Critical diameters of the Pelvis: If any of the following diameter is less than critical diameter, Pelvis is said to be contracted