Correct Answer: Cell division

Solution : The correct option is Cell division .

Unicellular organisms divide to produce new individuals by a process known as binary fission, which allows unicellular organisms to multiply fast under favourable conditions, ensuring their survival and spread to new settings. A single unicellular organism divides or copies its genetic material and then splits into two or more daughter cells in this method of reproduction. The daughter cells have the same genetic makeup as the parent cell.