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: Pediatrics
Turner's syndrome is maximally associated with the following cardiac condition: 
Select and explain. 
A. Aoic stenosis, B. Coarctation of aoa, C. VSD, D. Mitral valve prolapse
B: Coarctation of aoa
Answer: B: Coarctation of aoa 
Explanation: The most common cardiovascular abnormalities are bicuspid aoic valve, which is present in 10% to 20%, and coarctation of aoa, present in 10% of adult cases. The prevalence of these abnormalities is higher in children. Less common cardiovascular anomalies include, Aoic stenosis Systemic hypeension Mitral valve prolapse Conduction defects Paial anomalous venous drainage Ventricular septal defect (VSD) Ref: Marian A.J., Brugada R., Robes R. (2011). Chapter 82. Cardiovascular Diseases Caused by Genetic Abnormalities. In V. Fuster, R.A. Walsh, R.A. Harrington (Eds), Hurst's The Hea, 13e.