Passage Summary: The author defines productivity and argues that because you must have well-trained workers to be highly productive, you don't actually need high-tech machinery to get the job done.

Conclusion: High productivity is not dependent on the use of high-tech equipment.

Reasoning: High productivity cannot be reached unless workers have received adequate training.

Analysis: The author makes a classic mistake by assuming that because one factor is necessary for a result, other factors must be irrelevant. Just because you need a key to start a car doesn't mean you don't also need gasoline. In this case, the argument ignores the possibility that both training and technology are required to reach high productivity levels. Look for an answer that points out this failure to consider that multiple conditions might be necessary at the same time.