A buzzer that produces sound at a frequency of $846\,\text{Hz}$ is fixed to a string and spun in a horizontal circle. Its linear speed is $25.0\,\text{m s}^{-1}$. Take the speed of sound as $340\,\text{m s}^{-1}$. What is the largest frequency detected by the observer?
- A$783\,\text{Hz}$
- B$788\,\text{Hz}$
- C$908\,\text{Hz}$
- D$913\,\text{Hz}$