Which list provides evidence for the general theory of relativity?

General relativity predicts that gravity can shift light to longer wavelengths, bend light’s path, and alter planetary orbits. These effects are observed as gravitational redshift, gravitational lensing, and changes in a planet’s orbital path, so choice A lists evidence for the theory. The constancy of the speed of light and length contraction are associated with special relativity, not evidence specific to general relativity.

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