I would say brainstorming because you are making a list of certain topics. With brainstorming, that is exactly what you do, you write down a list of topics that you are interested in or know a lot about.
Depending on the topic that your teacher gives you, you might be able to intertwine all of these ideas/topics into a paper.
<span>The correct answer is inevitability of death. As, the speaker discusses about his fear of the death and fear of death that will rob him from his love.</span>