The correct option is
B Efferent nerve
The cranial nerve-XII or the Hypoglossal nerve originates from the medulla oblongata region of the brainstem in the hindbrain. It innervates the muscles of the tongue. It is a motor neuron that carries the nerve impulse from the medulla to the muscles of the tongue can cause the movement of the tongue. So, it is a motor or the efferent nerve.
Hence, the correct answer is 'Efferent nerve'