PrepTest 59, Section 2, Question 22
A recent study confirms that nutritious breakfasts make workers more productive. For one month, workers at Plant A received free nutritious breakfasts every day before work, while workers in Plant B did not. The productivity of Plant A's workers increased, while that of Plant B's workers did not.
A recent study confirms that nutritious breakfasts make workers more productive. For one month, workers at Plant A received free nutritious breakfasts every day before work, while workers in Plant B did not. The productivity of Plant A's workers increased, while that of Plant B's workers did not.
A recent study confirms that nutritious breakfasts make workers more productive. For one month, workers at Plant A received free nutritious breakfasts every day before work, while workers in Plant B did not. The productivity of Plant A's workers increased, while that of Plant B's workers did not.
A recent study confirms that nutritious breakfasts make workers more productive. For one month, workers at Plant A received free nutritious breakfasts every day before work, while workers in Plant B did not. The productivity of Plant A's workers increased, while that of Plant B's workers did not.
Which one of the following, if true, most strengthens the argument?
Few workers in Plant B consumed nutritious breakfasts during the month of the study.
Workers in the study from Plant A and Plant B started work at the same time of day.
During the month before the study, workers at Plant A and Plant B were equally productive.
Workers from Plant A took fewer vacation days per capita during the month than did workers from Plant B.
Workers in Plant B were more productive during the month of the study than were workers from Plant A.
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