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
Incomplete Androgen insensitivity syndrome is 
Select and explain. 
A. More severe than complete androgen insensitivity., B. Clitoromegaly and partial fusion of Labia., C. Breast development is absent., D. Karyotype is 46XX.
B: Clitoromegaly and partial fusion of Labia.
Answer: B: Clitoromegaly and partial fusion of Labia. 
Explanation: Incomplete AIS =

Less severe than complete AIS.
As testosterone gets converted to estrogen, breast development is proper.
Karyotype is 46 XY.
Clitoromegaly is the characterisitic feature.