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
True about Swyers syndrome 
Select and explain. 
A. Gonads are ovaries, B. Mullerian ducts develop normally, C. External genitalia look like male, D. Excess testosterone.
B: Mullerian ducts develop normally
Answer: B: Mullerian ducts develop normally 
Explanation: Swyers syndrome = 46XY

Dysgenetic testis

Absent testosterone → External genitalia looks like female.
Absent AMH → Mullerian ducts develop normally.