I believe the answer is E. I feel smrt.
They're all wrong: a stuffed animal will have a low mass:surface area ratio and will be subject to a lot of drag, which none of them accounted for.
Joking aside, I think the answer is A, since it's the only one with all the signs correct. Darth Vader's solution implies it ends up 22m below where it started, was thrown up, and is falling down. Voldemort's solution implies it ends up 22m above than it started, was initially thrown up, and is falling up. Sauron's solution implies it ends up 22m above where it started, was thrown down, and fell up.