The Graph Given Below Compares the GDP of a Country

The graph given below compares the GDP of a country with the country's energy consumption. Analyze the graph and identify a statement that is true for the years 1960-2000.

A) The country's GDP has increased with energy consumption.
B) The country's GDP has decreased with energy consumption.
C) Energy derived from coal contributed the most to the GDP.
D) Energy derived from natural gas contributed the most to the GDP.