The conclusion is based on an assumption that the safest chassis are still the heaviest ones, as they have been in the past. Choice E proves this assumption tobe erroneous.The CEO of Black’s International has proposed replacing their Marmacil semiconductor manufacturing equipment with Fasttech equipment since it costs 30 percent less to train new staff on the Fasttech equipment. Those opposed to the change have pointed out the savings in training cost does not justify the change. Instead, they suggested that the company hire only people who already know how to use the Marmacil equipment.