Gustavo Is Able to Detect That a Noise Is Coming

question 134

Multiple Choice

 Gustavo is able to detect that a noise is coming from straight above his head because of

• A) the existence of sound "shadow."
• B) an analysis of the intensity of sounds reaching each ear.
• C) the effect of the pinna on incoming sounds.
• D) an analysis of the arrival time of sounds at each ear.