What system(s) does the larynx work with?

Ineed to know why d is the correct answer asap

Which of these best describes what occurs during cytokinesis? a) the chromosomes are separated b) the cell begins to divide by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm

What amino acid is coded for by this sequence after the mutation