Can someone me with my homework on study island i don't understand the question

im a little rusty on this so i dont really know the answer but it's between A or B, this is because the sun is mainly heating up the land causing air that is over the land to heat up and rise up, this pulls the cool air that is over the lake to move into the part where the hot air was and cause wind to happen, basically creating a cycle that wont stop until it's night time

what the question is asking is how does the sun creates wind that moves from the late to the land. hope my explanation of what is shown in the graph helps you, good luck

PS: if you'd ask me to choose one, i'd guess it's B

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).