Section 111 of IPC provides for the same. It say that when an act is abetted and a different act is done, the abettor is liable for the act done, in the same manner and to the same extent as if he had directly abetted it. Provided that the act done was a probable consequence of the abetment, and was committed under the influence of the instigation, or with the aid or in pursuance of the conspiracy which constituted the abetment. In option (a) word is respective is not appropriate.