In an optical communication system, having an operating wavelength λ in meters, only X% of its source frequency can be used as its channel bandwidth. The systems is to be used for transmitting TV signal requiring a bandwidth of f Hz. The number of channels transmitted by this system simultaneously is (c = speed of light)

A. $$\frac{{100Xc}}{{\lambda f}}$$

B. $$\frac{{100\lambda f}}{{Xc}}$$

C. $$\frac{{Xc}}{{\lambda f}}$$

D. $$\frac{{Xc}}{{100\lambda f}}$$

Answer: Option D