To strengthen the strategy consultant's argument, we need to find an option that supports the idea that having fewer remote employees is a significant factor in Company X's higher productivity. Let's analyze each option:
A. Company X’s remote employees are more productive than the remote employees of any other company of comparable size in the industry.
This option suggests that Company X's remote employees are exceptionally productive, which could imply that the higher productivity is due to the productivity of remote employees, not the low percentage of remote workers. Therefore, this does not strengthen the argument.
B. The percentage of employees working on-site is higher in Company X than in any other company of comparable size in the industry.
This restates part of the premise that Company X has more on-site employees but does not provide additional evidence that having more on-site employees (and fewer remote employees) is the primary reason for higher productivity. Thus, it doesn't strengthen the argument.
C. Nationwide, companies without remote employees typically are less profitable than companies with a high percentage of remote employees.
This introduces information about profitability on a national scale, which is irrelevant to the argument about productivity within companies of comparable size in the same industry. Hence, it doesn't strengthen the argument.
D. In Company X, a lower proportion of employees work remotely than in any other company of comparable size in the industry.
This option merely restates the premise without providing new evidence linking the low percentage of remote employees to higher productivity. Thus, it doesn't strengthen the argument.
E. Company X’s on-site employees have productivity rates no higher than the productivity rates of on-site employees at other companies of comparable size in the industry.
This option suggests that the on-site employees of Company X are not more productive than those at other companies, implying that the higher overall productivity is due to the lower percentage of remote employees. This strengthens the argument by eliminating the possibility that higher productivity is due to exceptionally productive on-site employees.
Therefore, Option E is the correct choice as it most effectively strengthens the strategy consultant's argument.