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
Which of the following is not a sign of active rickets ? 
Select and explain. 
A. Prominent fontanelle, B. Hot cross bun sign, C. Saddle nose, D. Caries teeth
C: Saddle nose
Answer: C: Saddle nose 
Explanation: Saddle nose is not seen in rickets.