Critical Reasoning (CR) | Last year, in order to reduce its operating expenses, a law firms man

Last year, in order to reduce its operating expenses, a law firm’s management decided to adopt a new policy in which the lawyers would work from their homes for 2 out of 5 workdays per week. According to the management, this step should have decreased the firm’s expenditures on electricity, water, parking, and food. The yearly expense report showed that the operating expenses had been reduced significantly.

Which of the following, if true, most weakens the firm management’s confidence that
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