D.
when revising your professional development plan
Acid rain<span> is caused by a </span>chemical<span> reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other </span>chemicals<span> to form more </span>acidic<span> pollutants, known as </span>acid rain<span>.</span>
I think the answer would be "A"
Four new haploid cells are formed once the sister chromatids within the two daughter cells separate, forming four new haploid gametes.