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: Unknown
45 X, chromosomal compliment associated with: 
Select and explain. 
A. Turner 's syndrome, B. Edward syndrome, C. Patau syndrome, D. Klinefelter syndrome
A: Turner 's syndrome
Answer: A: Turner 's syndrome 
Explanation: (Turner syndrome): Ref: 2216 - H (2341-H17th) Disorder Common chromosomal compliment Gonad External Genitalia Internal Genitalia Breast development * Klinefelter syndrome 47, XXY or 46 XY, 47 XXY Hyalinized testes Male Male Gynecomastia * Turner syndrome 45, X or 46 XX/ 45, X Streak gonad or immature ovary Female Hypoplastic female Immature female * Mixed gonadal dysgenesis 46 XY/45X Testis or streak gonad Variable usually ambiguous Variable Usually male * True hermaphroditism 46XY/46XX Testis & ovary or ovotestis Variable usually ambiguous Variable Gynecomastia