Carbon sequestration ________.
A) involves capturing carbon emissions and then releasing them into the stratosphere
B) converts carbon from carbon dioxide emissions into smaller elements that do not contribute to global climate change
C) has proved to be more dangerous to the environment than releasing carbon emissions
D) involves converting carbon dioxide gas to a liquid form for storage in the ocean or underground
E) has been used by U.S. electrical plants since 1955, converting carbon dioxide to limestone