Engineers find a new metal that is stronger than steel but much lighter. this

material is also significantly cheaper than what is currently used for most

aircraft, available in large quantities, and easy to manufacture. the engineers

ore excited because this new metal will lower companies cots of buying and

operating airplanes. what is the best step for the engineers to make next?

a. begin marketing a plane constructed from this metal,

o

b. conduct a flight test for an airplane made from this metal,

c. decide whether or not to paint the new aircraft

o

d. begin to design an airplane using this metal,