The water surface in a deep well lies $78.0\,\text{m}$ beneath the top of the well. From the top of the well, a person releases a heavy stone down the well. Air resistance is negligible. The speed of sound in air is $330\,\text{m s}^{-1}$. What is the time interval between the person releasing the stone and hearing it strike the water?
- A$3.75\,\text{s}$
- B$3.99\,\text{s}$
- C$4.19\,\text{s}$
- D$4.22\,\text{s}$