In a vacuum, the speed of light is $3.0 \times 10^8\,\text{m s}^{-1}$. Which value is nearest to the speed of light in air?
- A$3.0 \times 10^2\,\text{m s}^{-1}$
- B$3.0 \times 10^4\,\text{m s}^{-1}$
- C$3.0 \times 10^6\,\text{m s}^{-1}$
- D$3.0 \times 10^8\,\text{m s}^{-1}$