Student X fires a starting pistol, generating both smoke and sound. Student Y is standing $100\,\text{m}$ away and sees the smoke at the exact moment it is produced. The speed of sound in air is $340\,\text{m s}^{-1}$. How long is the delay between student Y seeing the smoke and hearing the sound?
- A$0.29\,\text{s}$
- B$0.59\,\text{s}$
- C$1.7\,\text{s}$
- D$3.4\,\text{s}$