An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. The observer is traveling at a velocity of 24.00 m/s toward the ambulance and the ambulance is traveling at a velocity of 20.00 m/s toward the observer. What is the frequency of the siren perceived by the observer?
A. 2,489 Hz
B. 2,560 Hz
C. 2,675 Hz
D. 2,725 Hz
E. 2,830 Hz
D. 2,725 Hz
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