Zombies Vs. Aliens Vs Mankind who would win?

We all know the Apocalypse is fast approaching. What I want to know is in the event that both Aliens and Zombies attack mankind at the same time who will win:
a) Aliens
b) Zombies
c) Aliens and Zombies
d) Mankind
e) Mankind and Zombies (we find a cure and defeat the Aliens)
f) Mankind and Aliens (they help us beat the Zombies and we live in peace)
g) No survivors game over
So choose your option explain why or give an alternate response to the situation.
p.s have fun…