I think you meant to put science, not English, but I'm pretty sure the answer is a
The distinct physical aspect is that he is blind, which back then, it was thought that you could see the past and the future. He then asks him to sing about Troy, Odysseus does this act to see the reaction of the people, and to also see if they are on his side or not just before he reveals his identity.
Me personally I think that it was galmis and cawdor
D. the nerve tissue became immune to disease
it was scientifically proven and thats how we have modern day vaccinations
