Seminal stain can be detected by: (A) Phenolphthalein test, (B) Reine's test, (C) Barberio's test, (D) Paraffin test
Answer is C. Test for seminal  stains

Creatine phosphokinase test
Acid phosphatase test
Florence test (Choline iodide crystals)
Barberio's test (Crystals of spesmin picrate).