A instigate B for commission of an offence, such instigation will be called

When A instigates B for the commission of an offence, such an act falls under the definition of abetment. According to Section 107 of the P.P.C., instigation is the primary mode of abetment. The act of encouraging or provoking another person to commit a crime constitutes abetment. Therefore, option A is correct. Option B, 'Solicitation', is a general term for asking or urging, which can be a part of instigation, but 'abetment' is the precise legal term for the criminal act. Option C, 'Participation', implies direct involvement in the physical act of the crime, which is distinct from merely instigating it.