And let's see, we're only left with this one, so I hope it works. So f of C is equal to four. Well, that seems reasonable because four is between three and six for at least one C between negative two and one. Well, yeah, because that's in this interval right over here. So I am feeling good about that. And we could think about this visually as well. The intermediate value theorem, when you think about it visually, makes a lot of sense.