Engineers designed a motorcycle helmet from a long-lasting and safe material that protects the wearer from accidents and excessive heat. What is one technological design criterion that the engineers still need to meet?

The helmet already meets the criteria of being durable and safe: it is made from a long-lasting material and protects the wearer from accidents and heat. A design criterion the engineers still need to consider is whether it is affordable for people to buy. Therefore, the correct choice is “be affordable.”

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