Question

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?
be a solution to the problem
be affordable
bedurable
be safe

Explanation:

The helmet is already described as long - lasting (durable) and safe, and it's a solution to the problem of protection. Affordability is a common design criterion that may not have been addressed yet.

Answer:

B. be affordable