Ayesha is standing atop a vertical tower 200m high and observes a car moving away from the tower on a straight, horizontal road from the foot of the tower. At 11:00 AM, she observes the angle of depression of the car to be $$45^{\circ}$$. At 11:02 AM, she observes the angle of depression of the car to be $$30^{\circ}$$. The speed at which the car is moving is approximately

A

8.45 km per hour

B

4.39 km per hour

C

6.3 km per hour

D

10.6 km per hour