 
<translate> Mgbanwe ndị a na-enwe n'ahụ́ ihe dị iche iche dị oké mkpa iji mee ka evolushọn nwee isi. Mgbanwe ndị a na-enwe na mkpụrụ ndụ ihe nketa na-agbanwe agbanwe. Mgbanwe ndị a na-enwe n'ihe ndị e ketara eketa dị oké mkpa iji mee ka e nwee mgbanwe. Ya mere azịza ya bụ (B). <eng> Mutations are essential for evolution to occur. Mutations are changes in the genetic material. Changes in the genetic material are essential for evolution to occur. So the answer is (B). 