A boy calls out and receives the echo from a tall building $2.2\,\text{s}$ afterwards. The speed of sound in air is $330\,\text{m s}^{-1}$. How far away from the boy is the building?
- A$150\,\text{m}$
- B$300\,\text{m}$
- C$360\,\text{m}$
- D$730\,\text{m}$