Which of the Following Does Not Attract Section 34 of the IPC

Which of the following does not attract Section 34 of the IPC?

A) the accused husband killed his wife and threw her dead body into the well to the knowledge of co- accused. As yet co-accused took the false plea that on date and hour incident the deceased was present in the house.
B) the accused was involved in looting the victims in broad daylight on the main public road. Main accused indulged in looting but co-accused was simply standing nearby.
C) Driver and cleaner of a bus when form a common intention to kill the deceased and in pursuance of the plan kill him and take away the sale proceeds of the grain sold by him
D) all of them except the co-accused in B.