This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics, Subject name: Pathology
A 19-year-old female with sho stature, wide spread nipples and primary amenorrhea most likely has a karyotype of: (AI 2003) 
Select and explain. 
A. 47, XX + 18, B. 46, XXY, C. 47, XXY, D. 45 X0
D: 45 X0
Answer: D: 45 X0 
Explanation: Given features suggests the diagnosis of Turner's syndrome. Turner's syndrome Most common sex chromosomal disorder in phenotypic females. Results from complete or paial loss of one X chromosome (45, XO) Characterized by hypogonadism in phenotypic females.