Write a thesis statement on is time travel possible?

Time Travel. Is it possible? When you look at it, no. Why? Time travel is going back in time. To do this, you would have to undo everything. Everything. The universe is so big we can only imagine It. The part that we know, the milky way is less than a thousandth of it. You would have to undo everything in existence, and at the moment we don't even know everything in existence. We are closer to growing gills then time travel.

The correct answer is option a.