a planet close to Earth the closest star to Earth a planet that reflects light the center of the universe
I gave my students this multiple choice question: The sun provides heat and light to Earth. The sun is best described as

Only one answer is correct among these 4 choices:
- a planet close to Earth
- the closest star to Earth
- a planet that reflects light
- the center of the universe

Could you tell me which one is correct?

the closest star to Earth