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: Forensic Medicine
If angle of mandible is obtuse it means that the bone belongs to -a) Adult maleb) Adult femalec) Young female childd)  Elderly person 
Select and explain. 
A. ab, B. cd, C. bd, D. ac
B: cd
Answer: B: cd 
Explanation: None