If a reader did not know that Ellery Queen is normally associated with the mystery genre, which sentence would first indicate that "Object Lesson, Part 1" is a mystery?
A
Ellery hurried down West 92nd Street toward the main entrance of Henry Hudson High School stealing guilty glances at his watch.B
It had seemed to Ellery that this placed a rather hefty burden on his oratorical powers.C
Beyond establishing that the crimes were the work of the same boys, who were probably students at Henry Hudson High School, the police had got nowhere.D
Miss Carpenter, walking home from a movie late the previous Monday night, had seen three boys dive out of a smashed bakery window and vanish into an alley.