Answer:
i would say C...
Step-by-step explanation:
How does the Big Bang explain this? well, in it’s initial moments, the universe was in an extremely hot dense state. It was so hot and dense that all matter was in the form of an opaque plasma, and light was not able to travel freely without scattering . As time went on the universe expanded and cooled until protons and electrons were able to combine to form hydrogen atoms, at which point the universe became transparent, and light was able to travel freely through space. The light that we measure now and call the CMB is that same light that has been traveling ever since. It is essentially a picture of the very early universe (called “the surface of last scattering.”) The Big Bang model, where the universe started in a hot dense state and has been expanding ever since, predicts the existence of this light, as well as its temperature and wavelength based on the subsequent expansion of the universe.