The discovery that the narrator makes by dissecting his brain is learning that his thoughts require a constant flow of pressurized air because brain activity slows due to low air pressure.
I want to say it's B, that's the only one I can think that's relevant to the research
I would say the best answer is A. Answer choice B is rather absurd and answer choice C doesn't exactly make any sense.
Looking for Alaska is the figurative language because you can't actually look for Alaska