At a Concert the Oboe Is Playing a Long Steady

Multiple Choice

At a concert the oboe is playing a long steady note as you walk away from the stage at an accelerating velocity toward the rest room.The pitch of the sound that you hear is

A) steady but higher than normal.
B) steady but lower than normal.
C) continually decreasing.
D) continually increasing.
E) None of the above choices are correct.