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