How do the parenthetical remarks in John Jeremiah Sullivan's article 'How William Faulkner Tackled Race - and Freed the South From Itself" contribute to its tone? O A. They add a conversational tone to the article. O B. They add an academic tone to the article. O C. They enhance the level of discourse by providing unnecessary information. O D. They reflect Sullivan's disparaging tone toward Faulkner.