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
The principle of Pearson's formula is to measure the length of long bone and multiply it with a given factor; for radius such factor is: Himachal 10 
Select and explain. 
A. 3.6 to 3.8, B. 4.2 to 4.5, C. 6.3 to 6.9, D. 5.0 to 5.3
C: 6.3 to 6.9
Answer: C: 6.3 to 6.9 
Explanation: Ans. 6.3 to 6.9