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
Most common cause of genu valgum in children is – 
Select and explain. 
A. Osteoarthritis, B. Rickets, C. Paget disease, D. Rheumatoid arthritis
B: Rickets
Answer: B: Rickets 
Explanation: None