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
A child presents with antimongoloid slant, pulmonary stenosis, sho stature and undescended testis. The likely diagnosis is- 
Select and explain. 
A. Hypoparathyroidism, B. Noonan syndrome, C. Klinefelter syndrome, D. XYY sex chromosomes
B: Noonan syndrome
Answer: B: Noonan syndrome 
Explanation: Ans. is 'b i.e., Noonan Syndrome