A man is positioned $110\,\text{m}$ away from a tall wall. He produces a brief, sharp sound and then receives an echo back from the wall. The speed of sound in air is $330\,\text{m s}^{-1}$. What is the time taken after he makes the sound before he hears the echo?
- A$0.33\,\text{s}$
- B$0.67\,\text{s}$
- C$1.5\,\text{s}$
- D$3.0\,\text{s}$