How can the wavelengths of light from a distant galaxy be used to determine the distance between Earth and the galaxy?
A The color of light from a galaxy indicates the age of the galaxy, and the most distant galaxies are the
oldest.
B The light from distant galaxies shows a shift to longer wavelengths, and the shift increases as the distance
increases.
C The light from a distant galaxy is scattered by dust in the space between Earth and the galaxy, and the
amount of scattering indicates distance.
D The most distant galaxies emit the most light in the x-ray part of the spectrum, and the distance can be
determined based on the strength of this light.