 
<translate> Juyin halitta yana da muhimmanci don juyin halitta ya faru. Zaɓin halitta shi ne tsarin juyin halitta. Juyin halitta yana ba da damar zabin yanayi ya faru. Saboda haka amsar karshe ita ce (B). <eng> Mutations are essential for evolution to occur. Natural selection is the mechanism of evolution. Mutations allow for natural selection to occur. So the final answer is (B). 