This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sexual offences and infanticide, Subject name: Forensic Medicine
All are test to detect seminal stains except 
Select and explain. 
A. Florence test, B. Barberio's test, C. Acid phosphatase test, D. Benzidine test
D: Benzidine test
Answer: D: Benzidine test 
Explanation: Tests for semen Florence test Barberio's test Acid phosphatase test Creatinine phosphokinase Thin layer chromatography Prostate specific antigen. Ref; FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 321