If only automobile “C” is in motion when the incident occurs,
(a) in the collision between automobiles “A” and “B”, neither driver is at fault for the incident; and
(b) in the collision between automobiles “B” and “C”, the driver of automobile “B” is not at fault and the driver of automobile “C” is 100 per cent at fault for the incident.
If only automobile “C” is in motion when the “incident” occurs, then automobile “C” is 100 per cent at fault for the “incident”.