On this road, only those intending to... must obey the signals located on their left.
A)go straight ahead or turn right.
B)turn left only.
C)turn left or go straight ahead.Correct
When traffic lights with different indications exist on the right and on the left, if the driver intends to turn left or go straight ahead, they must only obey the lights of those immediately to their left. Those intending to turn right must follow the traffic light on the right.