A: This question is essentially about whether it’s an “inclusive or” (and/or), and you could win with just one, or just the other OR BOTH, or whether it’s an “exclusive or” (xor), where you can win with just one, or just the other, but NOT both.

In this case, it’s an inclusive or: you can win if you have both. The idea is that you have to have nothing but Noble Gasses (they’re snooty and don’t like to connect to other elements!) but it’s okay if you have both of them, since they are both Noble Gasses.