I'll give you a question, please answer with step-by-step reasoning process. The goal was to hit the target, but a projectile ball can't hit anything if it isn't in what?\nOptions:\n- motion\n- ocean\n- flintlock\n- arcade\n- tennis court

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If a ball is in a motion then it can hit anything. A projectile ball can hit target if it is in motion.
The answer: motion.
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