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If Sirius is 2.7 light years away from earth, this means that …

A. It takes 2.5 years for the light coming from Sirius to reach us.

B. It takes 2.6 years for the light coming from Sirius to reach us.

C. It takes 2.7 years for the light coming from Sirius to reach us.

D. It takes less than a year for the light coming from Sirius to reach us.

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