Which best explains why it is warmer at the equator than the North Pole?

Question options:

A:The equator has a larger area than the North Pole.

B:The equator has more daylight hours per year than the North Pole.

C:The equator is closer to the Sun than the North pole.

D:The equator receives more direct sunlight than the North Pole.

D: The equator receives more direct sunlight than the North Pole.