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
Gynaecological cancer unusual in young women: 
Select and explain. 
A. Cancer ovary, B. Cancer cervix, C. Cancer vulva, D. Choriocarcinoma
C: Cancer vulva
Answer: C: Cancer vulva 
Explanation: Cancer vulva