题目选项分析

Division Manager：I want to replace the Microton computers in my division with Vitech computers.General Manager：Why?Division Manager：It costs 28 percent less to train new staff on the Vitech.General Manager：But that is not a good enough reason.We can simply hire only people who already know how to use the Microton computer.

Which of the following, if true, most seriously undermines the general manager's objection to the replacement of Microton computers with Vitechs?

【选项】The average productivity of employees in the general manager's company is below the average productivity of the employees of its competitors.