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
Read the following carefully:
1)	Spheno-occipital synchondrosis
2)	Mandibular condyle
3)	Frontomaxillary suture
4)	Nasal septum
5)	Alveolar processs
Which of the following are sites of cartilaginous growth postnatally? 
Select and explain. 
A. 1 & 2, B. 1, 2 & 4, C. 2, 3 & 5, D. 3 & 5
B: 1, 2 & 4
Answer: B: 1, 2 & 4 
Explanation: The spheno-occipital synchondrosis, mandibular condyle, nasal septum are components of the cartilaginous growth. 
Nasal septum and alveolar bone are not cartilaginous type of bone.