Read this sentence from "the cask of amontillado" by edgar allan poe: in painting and gemmary, fortunato, like his countrymen, was a quack, but in the matter of old wines he was sincere. what does the word quack likely mean? a) a person who talks loudly and ignorantly b) an unskilled person who claims special knowledge in a specific field c) a person who gossips about friends and acquaintances d) a person who is boastful about very minor accomplishments