This is an English question? Well, Pangaea is the theory that all continents were once one piece of land, and continental drift is what caused the separation of the land into 7 different continents. This theory also claims that one day Pangaea is going to reconnect due to continental drift.
They say our continents were once were formed together and then they split apart, to now as we know are North America, South America, Asia, Europe, Africa, Antarctica, and Australia.
The neighbor has to be the antagonist, because the protagonist loved his dog very much and his neighbor killed his dog, the protagonist even called his neighbor evil, so I would go with C, the neighbor.
