hard · GMAT Verbal Reasoning
Historically, the price of copper has been a reliable leading indicator of global industrial production. However, over the past year, while copper prices have risen by 20 percent, global industrial production has remained stagnant.
Which of the following, if true, most helps to explain the apparent discrepancy described above?
- Major copper mines experienced labor strikes that severely restricted the global copper supply.
- Global industrial production is expected to increase significantly over the next five years.
- Industrial production in emerging markets grew at a faster rate than in developed economies.
- New industrial technologies have reduced the amount of copper required to manufacture electronic components.
- The price of other industrial metals, such as aluminum and nickel, also increased during the same period.
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