Visible light has wavelengths from $4.0 \times 10^{-7}\,\text{m}$ up to $7.0 \times 10^{-7}\,\text{m}$. Determine the range of the frequencies of visible light.
- A$0.12\,\text{Hz}$ to $0.21\,\text{Hz}$
- B$120\,\text{Hz}$ to $210\,\text{Hz}$
- C$4.3 \times 10^{11}\,\text{Hz}$ to $7.5 \times 10^{11}\,\text{Hz}$
- D$4.3 \times 10^{14}\,\text{Hz}$ to $7.5 \times 10^{14}\,\text{Hz}$