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
Outlet forceps, meansa) Head at station "0"b) Full cervical dilatationc) Rupture of membraned) Rotation > 45 
Select and explain. 
A. a, B. c, C. ac, D. bc
D: bc
Answer: D: bc 
Explanation: None