Dean of Sciences: I want to replace the JS spectrometer in our lab with an IVA spectrometer.
Principal : Why?
Dean of Sciences: It costs 30 percent less to train new staff on the IVA spectrometer.
Principal : But that is not a good enough reason. We can simply hire only people who already know how to use the JS spectrometer.
Which of the following, if true, most seriously undermines the principal’s objection to the replacement of JS spectrometer with IVA spectrometer?
A The high costs of replacement parts make the IVA spectrometer more expensive to maintain than the JS spectrometer.
B Experienced users of JS spectrometers command much higher salaries than do prospective employees who have no experience in the use of spectrometers.
C Once staff learn how to use a spectrometer, they tend to change colleges more readily than before.
D Currently all staff in the college are required to attend workshops on how to use JS spectrometer in new applications.
E The average productivity of staff in the college is below the average productivity of the staff of its competitor colleges.