Question: Suppose you are observing a distant galaxy whose light has taken 2 billion years to reach us . Which of the following do you see?

Suppose you are observing a distant galaxy whose light has taken 2 billion years to reach us. Which of the following do you see?
The light from the galaxy as it was 2 billion years ago, and it is redshifted.
The light from the galaxy as it is today, and it is redshifted.
The light from the galaxy as it is today, and it is blueshifted.
Nothing: the galaxy lies beyond the cosmological horizon.
The light from the galaxy as it was 2 billion years ago, and it is blueshifted.

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