I am a Eukaryotic multicellular, photosynthetic, marine, organism with motile sperm cells. I grow very fast and live my adult life attached to rocks being pounded by waves.

C) reflection (i also looked up the other choices just to make sure)

Your gonna need to upload an image with the question : )

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.