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 newborn baby presents with shock, hyperkalemia and hypoglycemia. What is the most likely diagnosis- 
Select and explain. 
A. Septicemia, B. Inborn error of metabolism, C. Diabetes mellitus, D. Congenital adrenal hyperplasia
D: Congenital adrenal hyperplasia
Answer: D: Congenital adrenal hyperplasia 
Explanation: Ans. is 'd' i.e., Congenital adrenal hyperplasia