It's not magic, it's science. [Clarke says this bit without a beat of hesitation, the words flowing so naturally from her mouth that she doesn't even question how it might seem to someone else.] It's a biological change and enhancement of some kind. All science, no spells. [The difference does need to be spelled out, however. After all, Caroline just mentioned that she knows a witch.]

As for the blood bags—yes. That's exactly what I'd do. I can take my own blood. That part is easy enough.

[Said as if it is, which ... could be a selling point, and explains why she didn't need the cookies helping blood sugar thing. She knows. She may not take care of herself.

But she knows.]