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: Dental
Y axis is used to analyse 
Select and explain. 
A. Maxillary growth, B. Mandibular growth, C. Both maxillary and mandibular growth, D. To design appliance
B: Mandibular growth
Answer: B: Mandibular growth 
Explanation: None