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: Pathology
A baby girl with ambiguous genitalia is found to have 21-hydroxylase deficiency of the salt-wasting type.Which of the following karyotypes would you expect to find? 
Select and explain. 
A. 46, XX, B. 46, XY, C. 47, XXY, D. 47, XYY
A: 46, XX
Answer: A: 46, XX 
Explanation: . 46, XX