A researcher studies the light emitted by a distant star. The researcher finds that the light received from the star falls slightly closer to the red end of the electromagnetic spectrum when compared to a similar source closer to Earth. The researcher claims that the star is moving away from Earth. Is the researcher correct?
A No. All hot stars emit red-colored light.

B Yes. All moving objects emit red-colored light.

C No. The red-colored light emission is due to the composition of the star.

D Yes. Light from any object moving away from Earth shifts to red-colored light.