Answer: The light passing through Red bottle will have the lowest frequency.
Explanation: Relation between wavelength and frequency follows:

As, from the above relation, it is clear that the wavelength and frequency follows inverse relation, so the light having highest wavelength will have the lowest frequency.
From the spectra of visible region, the wavelength of Red light is maximum and hence, it will have the lowest frequency.
Therefore, the light passing through the bottle which is red in color will have the lowest frequency.