I think it is D, she likely has been in a similar position coz when she talks with Roger she says something like “I’ve been just like you” or something like that.
The suffixes -ible and -able mean that it is able to be done. For example, edible means that it can be eaten; drivable means it can be driven; disposable means it can be disposed of.
Hope this helps
They're both definitely unreliable, but the second answer(B) it doesn't seem like the narrator of "The Black Cat" seems insane, so I'm gonna think its D. I might be wrong though...