A good thesis for this... is to simply address the problem. For example, you could say, "The internet is becoming an addiction to many people...." or you could say, "The internet can become a serious problem for many people because of its addiction." . These are a few examples.Be sure to make it fairly clear to what your whole report or essay will be about.
Intellectual dreamer is the best characteristics that symbolizes Carol. The other choices do not symbolize Carol in the excerpt because he is a smart person that has many dreams.