Answer:
The correct answer is option 4 (cell division).
Step-by-step explanation:
M phase also known as mitotic phase is a period of cell cycle which lasts for about 1 hour where cell divides its copied DNA and cytoplasm to form duaghter cells.
M phase is the dramatic phase of cell cycle where a sequence of observable cellular events takes place which can be divided into two phases-mitosis and cytokinesis.
After completion of mitotic stages that is prophase, metaphase, anaphase, and telophase, cell proceeds for cytokinesis which begins with a little overlap with mitosis.
In cytokinesis, cytoplasm of the parental cell splits into two daughter cells completing cell cycle.
Thus, option 4 is the correct answer .