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
Forceps should NOT be used in: 
Select and explain. 
A. Twin delivery, B. Hydrocephalus, C. Post maturity, D. After coming head of breech
B: Hydrocephalus
Answer: B: Hydrocephalus 
Explanation: As discussed previously—
One of the criteria to be fulfilled before applying forceps is—there should be no major cephalopelvic disproportion (CPD) by clinical pelvimetry and hydrocephalus is an important cause of CPD.
Dutta Obs. 7/e, p 352