To evaluate a plan to save money on office-space expenditures by having its employees work at home, XYZ Company asked volunteers from its staff to try the arrangement for six months. During this period, the productivity of these employees was as high as or higher than before.
Which of the following, if true, would argue most strongly against deciding, on the basis of the trial results, to implement the company's plan?
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AThe employees who agreed to participate in the test of the plan were among the company's most self-motivated and independent workers.
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BThe savings that would accrue from reduced office-space expenditures alone would be sufficient to justify the arrangement for the company, apart from any productivity increases.
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COther companies that have achieved successful results from work-at-home plans have workforces that are substantially larger than that of XYZ.
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DThe volunteers who worked at home were able to communicate with other employees as necessary for performing the work.
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EMinor changes in the way office work is organized at XYZ would yield increases in employee productivity similar to those achieved in the trial.
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