In Example 2

Multiple Choice

In example 2.3, the textbook shows a surprising trend in the relationship between the price of copper and the consumption of copper over time. From 1880 to 2016, which of the following ocurred?

A) The consumption of copper remained virtually unchanged, yet the price increases substantially.
B) The price of copper reflected precisely the market prediction that as consumption rose steadily over time, the price of copper rose at almost exactly the same rate.
C) The price of copper remained virtually unchanged while the consumption of copper rose exponentially.
D) While the price of copper rose substantially, the consumption of copper actually declined.