Data on World Reserves of Minerals, Gathered by Blackman and Baumol

Multiple Choice

Data on world reserves of minerals, gathered by Blackman and Baumol, show that between 1950 and 2000, production of most minerals

A) greatly exceeded the reserves available in 1950.
B) declined as depletion occurred.
C) greatly reduced the reserves available in 2000.
D) was limited to a fraction of the reserves available in 1950.