Organisms choose to have different traits when they are struggling to survive and reproduce. A. True! That is why the bed bugs stopped being affected by the insecticide.

B. False! Bed bugs do not choose their genes. Genes are passed on from parents and may have random mutations.

False

Explanation: Nothing can choose their own genes

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.