Machines and people that work _____ have lower efficiency than those that have a _____ productive output.

Name: Machines and people that work _____ have lower efficiency than those that have a _____ productive output.
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Question

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The sentence compares slower vs faster and lower vs higher productive output. It suggests that machines and people that work slower have lower efficiency. Therefore, the only option that makes sense is A), slower with higher productive output.

Machines and People That Work _____ Have Lower Efficiency Than