Apart from the usual mental and physical effects of cyberbullying, it can take a toll on the health of the victim. Symptoms like headaches and stomach problems are very often seen in the victims. It can also result in issues that are caused due to stress like various skin conditions and stomach ulcers.
Think: How would you get anywhere without one of these things. I would say the answer is C, choosing a topic. You can complete any of these steps without choosing what you will be working on.