A instigates B to murder C. B refuses to do so. In this

Solution

As per illustration clause of S. 108. S.108. Abettor.— A person abets an offence, who abets either the commission of an offence, or the commission of an act which would be an offence, if committed by a person capable by law of committing an offence with the same intention or knowledge as that of the abettor. Illustration appended to explanation 2 Explanation 2.—To constitute the offence of abetment it is not necessary that the act abetted should be committed, or that the effect requisite to constitute the offence should be caused.