The Laser Interferometer Gravitational-Wave Observatory (LIGO) made the first detection of gravitational waves in 2016. Which of the following best describes the discovery?
A) The detection verified that gravitational waves exist as predicted by the general theory of relativity.
B) The detection of gravitational waves was a huge surprise because no one had predicted they would exist prior to their discovery.
C) There is still considerable doubt whether LIGO really detected gravitational waves.
D) The detection of gravitational waves contradicted predictions made by the general theory of relativity, requiring scientists to revise the theory.
A) The detection verified that gravitational waves exist as predicted by the general theory of relativity.
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