Mr. rabbit took a dump at 12:00 at Disney world.
One night, all the animals at Mr. Jones' Manor Farm assemble in a barn to hear old Major, a pig, describe a dream he had about a world where all animals live free from the tyranny of their human masters
The answer is most likely A because it looks like "over" is the only preposition used in any of these sentences.
To show that Derek succeeded in using the dream machine to complete his his project.
Hope this helps :D