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 female child presents with hypeension, hyperpigmentation and virilization, she is most likely to be suffering from deficiency of? 
Select and explain. 
A. 11 beta hydroxylase deficiency, B. 21 alpha hydroxylase, C. 17 alpha hydroxylase, D. 3 beta hydroxylase
A: 11 beta hydroxylase deficiency
Answer: A: 11 beta hydroxylase deficiency 
Explanation: 11 beta hydroxylase deficiency REF: Nelson's 18th ed p. 2366 See APPENDIX-58 for details of "Congenital adrenal hyperplasia"