I Observe a Galaxy That Is 100 Million Light-Years Away

I observe a galaxy that is 100 million light-years away: what do I see?

A) the light from the galaxy as it is today,but it is blueshifted
B) the light from the galaxy as it is today,but it is redshifted
C) the light from the galaxy as it was 100 million years ago and it it blueshifted
D) the light from the galaxy as it was 100 million years ago and it is redshifted
E) Nothing: the galaxy lies beyond the cosmological horizon.

Correct Answer:

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