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
To make a positive identification with the help of a partial fingerprint, the points of similarity should be at least - 
Select and explain. 
A. 10, B. 12, C. 16, D. 20
C: 16
Answer: C: 16 
Explanation: For this different textbooks have given a different number:-

Parikh  → 16 characteristics
Reddy  →10 - 12 finer characteristics
Seth and Simpson → 16 - 20 characteristics

16 is given in more number of textbooks, so the answer is 16.