the planet to revolve once around the Sun the seasons to complete a full cycle the planet to rotate once on its axis the Sun to rotate once on its axis
I gave my students this multiple choice question: The length of a year on Earth is a little over 365 days. The length of a year on a planet is best described as the time it takes for which to occur?

Only one answer is correct among these 4 choices:
- the planet to revolve once around the Sun
- the seasons to complete a full cycle
- the planet to rotate once on its axis
- the Sun to rotate once on its axis

Could you tell me which one is correct?

the planet to revolve once around the Sun