You are presented with the quiz "What part of a car easily changes shape from smooth to compacted by physical force?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "crumple means change shape from smooth into compacted by physical force" and "crumple zones and bumpers are often weaker and poorer performing than in cars".   So, what's the best answer to the question?
bumper
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You are presented with the quiz "what do pupils get when reacting to strong stimuli?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "light enters the eye through an opening called the pupil" and "if there is a strong light, the pupil gets smaller".   So, what's the best answer to the question?
smaller
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You are presented with the quiz "what does a flashlight require to produce light?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "aflashlight requires a source of electricity to produce light" and "batteries are a better source of DC electricity".   So, what's the best answer to the question?
batteries
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You are presented with the quiz "Turning on what will emit electromagnetic radiation?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "alight bulb converts electrical energy into light energy when it is turned on" and "lamps convert electrical energy to electromagnetic radiation or light".   So, what's the best answer to the question?

light bulb
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