As a musician, you are in the beginning stages of designing a soundproof studio to record your music. Your task is to select a material to line the walls so you have the least amount of echo. Which of the following materials would you choose? A.
Wood because the sound waves will reflect back into the studio as it hits the hard surface.

B.
Wood because the sound waves will be absorbed as they hit the hard surface.

C.
Foam because the sound waves will be absorbed into the foam.

D.
Foam because the sound waves will reflect back into the studio.