If you want to talk about quantum physics, the world where anything is possible, I'd definitely go with "both" on this one. Schrodinger's observations go to show that we can only say that something is true by directly observing it. The options are clearly that the cat can either be dead or alive. However, due to the inability to observe the cat, no one can say for sure which one it is. As Demagog said, there is one situation where it happened and one where it didn't. As long as we don't know which one occured, they both occurred.