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
A witness, who after taking oath, willfully makes a statement which he knows or believes to be false is guilty of offence under section: AIIMS 11; NEET 13, 15 
Select and explain. 
A. 190 IPC, B. 191 IPC, C. 192 IPC, D. 193 IPC
D: 193 IPC
Answer: D: 193 IPC 
Explanation: Ans. 193 IPC