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
Disputed maternity can be solved by using the following tests except : 
Select and explain. 
A. Blood grouping, B. HLA typing, C. Preciptin test, D. DNA fingerprinting
C: Preciptin test
Answer: C: Preciptin test 
Explanation: C i.e. Precipitin test