Here's a problem to solve: Felicia noticed how air temperatures were cooler and there were fewer hours of daylight during some of the seasons. Which of the following contributes to these seasonal changes?

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

- A: Earth rotates on its axis.
 
- B: Earth revolves around the Sun.
 
- C: The Sun has less energy in winter.
 
- D: The Sun moves further from Earth in winter.
 