Answer :
Final answer:
The constriction of the pupils is controlled by the oculomotor pathway(c), as part of the pupillary reflex mechanism to regulate light entry to the retina.
Explanation:
The pathway that involves the constriction of the pupils is the oculomotor pathway. This pathway is part of the pupillary reflex mechanism, which controls the amount of light entering the eye. When bright light is detected, sensory input through the optic nerve stimulates a motor response through the oculomotor nerve. This nerve then communicates with the ciliary ganglion, which projects to the circular fibers of the iris, leading to the constriction of the pupil. This process helps to limit the amount of light falling on the retina, protecting it from excessive brightness.
