Which of the following is the greatest factor that determines climate in any given location?

Well since I dont know what the following is I'll give you my best answer. The climate in a region is determined by the positioning of the Earth and where the region is located. If the region is more toward the equator the region will be hotter and dryer than other, since the equator is the belt of our planet that is closest to the sun.

I would go with the landscape bc it changes with time fast at times