Sophie develops a quiz to test a user's knowledge of Harry Potter trivia.One day,you take the quiz and after you're done you get the following message: "Congrats! You are a true Potterhead.Your scores are at the 90th percentile!" This means _______________.

A) you answered 90% of the questions correctly
B) you scored higher than 90% of the others who have taken the quiz
C) you know more about Harry Potter than 90% of the general population
D) the probability that your score is due to chance is 10%