Which of the steps in this sequence of events is an example of mitosis at work?

a.) a baseball hits the arm of a baseball player.
b.) the player reacts quickly grabbing his arm.
c.) a bruise forms where the ball hit the arm.
d.) the bruise slowly disappears as the arm heals.

D.) The bruise slowly disappears as the arm heals.

Explanation:

Mitosis is a phase in the cell cycle where the different sets of cromosomes are divided into two new nuclei, this means that new cells are formed, in the healing of a bruise the creation of new cells is a key process for healing, and that´s why it´s a good example of mitosis.

d.prevent the spread of communism outside of eastern europe.