Answer:
The correct answer option is 'cells come from existing cells'.
Step-by-step explanation:
Human skin consists of a continuous arrangement of cells that act as a barrier against the external toxins. When the skin breaks due to laceration or what you simply call a cut, the skin tries to make more skin cells to fill in the damaged area.
This repairing is possible because of mitosis. The skin cells around the cut or wound undergo the process of mitosis to make more copies of themselves in order to repair it.