The correct option is B Buccal cavity and oviduct of frog
The ciliated epithelium is the layer of simple epithelial cells but they possess fine hair-like outgrowths i.e., cilia on their free surfaces. These cilia are capable of rapid, rhythmic, wavelike beatings in a certain direction. This assists in removing dust particles and foreign bodies, which have entered air passages. It is found in the fallopian tubes of women. This also lines the trachea, bronchi and larger bronchioles.
In frogs, it is found in buccal cavity and oviduct.
Thus, the correct answer is the option (B), 'Buccal cavity and oviduct of frog'.