This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to remove scratches from car
Determine if the scratch is actually a scratch and not just something on the surface of the paint.
Look at the area close up and inspect whether you have a scratch or just debris on your car.
Sometimes what appears to be a scratch is actually a raised line of material from an impact.

Choose from:
[A]. Sprinkle some baking soda on the scratched area. Using a spoon, gently push the baking soda onto the scratch.
[B]. This occurs when your car contacts another bumper or any object whose coating is softer than your car paint. These imperfections require much less work to remove.
[C]. Scratch often has different shape and severity, though some scratches can be raised to appear as a result of external wear or damage the car has on the barrier surrounding it. This is a common mistake made in factory repairs.
[D]. The mark should be small enough to see through easily and is easy to spot. Small scratches can be very hard to repair with a scratch removal kit and do not require any additional care.
The answer is:
[B].