This is the first paragraph because it connects the essay to the world, giving a very basic background and context. This paragraph identifies some of the areas to be discussed and then narrows further into a clear thesis statement, outlining what the essay will cover and what position is going to be argued. Not that a “discuss” topic can invite a range of responses. This essay disagrees with the topic but it would also be possible to agree or “sit on the fence”, that is argue that it’s a complex issue and present arguments both for and against.