The answer is D because all of the other options prevent crashes, not reduce injury
They are located on the top!
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Answer: Smoking
Explanation: Smoking causes a number of negative health effects, one of which is cardiovascular disease. Smoking increases the formation of platelets in the blood vessels, also reduces blood flow to the heart, and reduces the amount of oxygen.
Hard hats, eye protection (non-perscription), hearing protection, welding ppe, metatarsal foot protection are a few