A traumatic injury to the body has occurred. A disruption in the cell cycle has taken place. A response by the immune system was triggered by an allergic reaction. A mutation occurred during the process of crossing over.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which factor best explains how many diseases, such as cancer, are formed within the body?
Possibilities:
- A traumatic injury to the body has occurred.
- A disruption in the cell cycle has taken place.
- A response by the immune system was triggered by an allergic reaction.
- A mutation occurred during the process of crossing over.

A disruption in the cell cycle has taken place.