How many cranial nerves given below are mixed nerves-
Trigeminal, trochlear, Facial, hypoglossal, vagus, glosso- pharyngeal, optic
7
4
6
3
Mixed nerves are trigeminal, facial, glosso-pharyngeal, vagus .
Trochlear is a motor nerve which help to move eye
Optic is a sensory nerve which helps in sight to the eyes.
Hypoglossal is a motor nerve which stimulates movement of tongue.
Hence, option b is the correct answer.