Q - At a certain time of the year, the South Pole receives constant sunlight and the days are 24 hours long. This occurs because -

a) Earth's magnetic field reverses and diverts light rays towards the Southern Hemisphere.
b) The hole in Earth's oxone moves over the South Pole, allowing light rays to completely penetrate the atmosphere.
c) The Sun moves slightly south of Earth due to a magnetic pull received from other planets.
d) Earth's axis tilts the Southern Hemisphere toward the Sun, reducing the effects of day and night from Earth's rotation.