The correct option is C The Sun
The Sun is the nearest star from Earth at an average distance of 15,00,00,000 km or 15 crore km.
The other stars like Antares, Rigel, and Proxima Centauri, are many light years away from us.
Proxima Centauri is the second closest star to us, at about 4.24 light years, or about 40 trillion kilometres away.