In the Film Harry Potter and the Prisoner of Azkaban

Multiple Choice

 In the film Harry Potter and the Prisoner of Azkaban, the "Fat Lady" painting tries to break a glass with the high-pitched, loud sound of her singing voice alone. Which type of sound stimulus is the Fat Lady trying to produce?

A) high amplitude, low frequency
B) high amplitude, high frequency
C) low amplitude, low frequency
D) low amplitude, high frequency