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
Test for vaginal cells collected for investigation for rape: AI 08 
Select and explain. 
A. Lugol's iodine test, B. Acro-reaction test, C. Precipitin test, D. Berberio's test
A: Lugol's iodine test
Answer: A: Lugol's iodine test 
Explanation: Ans. Lugol's iodine test