Answer:
Both events occur toward the end of mitosis.
Step-by-step explanation:
As mentioned, telophase and cytokinesis occur toward end of mitosis.
A is incorrect because During telophase and cytokinesis, animal cells form furrow or cleavage that gives way to formation of daughter cells. During telophase, plant cells phragmoplast forms in the center of the cell.
B is incorrect because DNA synthesis occurs in S phase.
D is incorrect because doesn't affect the organelle number as far as I know