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
Hostile witness is one who: Maharashtra 08 
Select and explain. 
A. Threatens the Judge, B. Threatens the prosecutor, C. Refuses to answer, D. Willfully gives false evidence
D: Willfully gives false evidence
Answer: D: Willfully gives false evidence 
Explanation: Ans. Willfully gives false evidence