I would say B, although I haven't read A Problem, I know that Daedalus is not immature. So that would automatically be incorrect.
Pretty sure it’s A hope it helps.
c) self- mocking
The girl sounds like she's embarrassed with herself. She says, "imagine my humiliation", which means she's mocking herself. She's also sarcastic saying," the best example of my brilliance" was when all she had to do was put the plug back in the outlet.
