medium · GMAT Quant

Which of the following, if true, most help to explain the apparent discrepancy in a scenario where a factory's defect rate fell while the total number of defects rose?

1. The total number of units produced by the factory increased significantly during the period.
2. The factory implemented more rigorous quality control measures that identified more defects.
3. The cost of raw materials used in production decreased, allowing for higher volume.
4. Other factories in the same industry reported similar trends in their defect counts.
5. The factory workers received additional training on defect prevention techniques.

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