4. Cody is driving down the road, eastbound, with his dog in the back seat of the car. To an outside observer on the roadside, Cody's speed is 21.0 meters per second. A blue car is passing them at a relative velocity of 2.5 meters per second. Which of the following statements are accurate about this situation? (Choose all that apply) O The blue car's velocity, to a roadside observer, is 18.5 m/s. Cody's velocity, from the blue car's frame of reference, is -2.5 m/s. O The blue car's velocity, to a roadside observer, is 23.5 m/s. The dog's velocity, relative to Cody, is 0 m/s. Cody is stationary from the blue car's frame of reference