Here's a problem to solve: You are getting up to go to school in Louisiana; a student on the other side of Earth is getting ready for bed. What is the reason for this?

Among the 4 following options, which is the correct answer?

- A: Earth revolves around the Sun.
 
- B: Earth rotates on its axis.
 
- C: The Sun rotates on its axis.
 
- D: The Moon revolves around Earth.
 