Question: Why do all galaxies outside our Local Group show a redshift? Question 3 options: We are in the center of the Universe. We are moving

Why do all galaxies outside our Local Group show a redshift? Question 3 options: We are in the center of the Universe. We are moving away from those galaxies. Light waves from those galaxies have been stretched by the stretching of spacetime. Distant galaxies emit only red light

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