What is the main function associated with the oculomotor nerve?

The oculomotor nerve primarily functions to control most of the eye's movements. This includes regulation of the extraocular muscles that allow for the movement of the eyeball as well as controlling the muscles that raise the eyelid. It also plays a vital role in pupillary constriction and focusing adjustments of the lens (accommodation). Therefore, its main role is associated with the movement of the eye, ensuring proper orientation and visual tracking.

While the other options may reference sensory functions (like smell and taste) or aspects of vision, those do not encompass the primary responsibilities of the oculomotor nerve. Instead, its essential role in eye movement is crucial for visual coordination and functioning within the visual system.