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
A young girl shows severe dysplasia on cervical cytology. The treatment of choice is : 
Select and explain. 
A. Conisation, B. Schiller's test, C. Colposcopy, D. Repeat pap smear
A: Conisation
Answer: A: Conisation 
Explanation: Conisation