The only guaranteed method is abstinence
Just google it youll find it quicker or watch a movie and write
In this case, it will all came to the material of the target. The easiest one should be the one that is made by nylon target.
The hardest one to knock over would be made by materials such as silicone, which will basically provide strong deflection for the ball
hope this helps
Answer:
A and b because you want them to clearly understand what is wrong and the name but at the same time not to confuse them