the tilt of Earth on its axis the rate of rotation of Earth the effects of solar flare activity the relative distance between Earth and the Sun
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Seasons in Alaska are primarily caused by which factor as Earth revolves around the Sun?
Possibilities:
- the tilt of Earth on its axis
- the rate of rotation of Earth
- the effects of solar flare activity
- the relative distance between Earth and the Sun

the tilt of Earth on its axis