Which punctuation choice effectively creates suspense and emphasizes a shift in thought in the sentence?
A) "She stepped ... into the dimly lit room ... a room that seemed haunted ... and she ... shivered."
B) "She stepped into the dimly lit room. A room that seemed haunted. It was only her imagination."
C) "She stepped into the dimly lit room: a room that seemed haunted, haunted by memories of the past and the ghosts of her mistakes."