The spotter above the tunnel will observe the speed of the spy as 95 kilometers per hour , and the person in the car will observe the speed of the spy as 200 kilometers per hour .
B
The person in the car and the spotter above the tunnel will both observe the speed of the person on the train as 95 kilometers per hour .
C
The person in the helicopter will observe the speed of the spy as 95 kilometers per hour , and the person in the car will observe the speed of the spy as 105 kilometers per hour .
D
The person in the helicopter and the spotter above the tunnel will both observe the speed of the person on the train as 95 kilometers per hour .