Question: Imagine we send a message to the Alpha Centauri system (about 4.3 light-years away). How long must we wait before bothering to look for a

Imagine we send a message to the Alpha Centauri system (about 4.3 light-years away). How long must we wait before bothering to look for a reply signal? Group of answer choices Instantaneously. 4.3 years. 8.6 years

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