Which type of vision utilizes both rods and cones, albeit not at their peak efficiency?

The correct choice is mesopic vision, which refers to the type of vision that occurs in lighting conditions that are intermediate between light and dark, such as during dawn or dusk. In this state, both rods and cones are utilized, albeit not at their optimal capacities. Rods, which are sensitive to low light levels, begin to respond while cones, which are responsible for color and high acuity vision, are still somewhat active. Because of this overlap, mesopic vision allows for some color perception and detail recognition but does not provide the full clarity or vibrancy achieved under bright (photopic) conditions or the heightened sensitivity to movement available in low light (scotopic) conditions.

Photopic vision is dependent primarily on cone cells and is most effective in bright light, which is not applicable to the conditions described in the question. Scotopic vision relies on rod cells and is utilized in very low light where color and detail perception are significantly diminished. Color vision specifically pertains to the ability to perceive different colors, which is primarily a function of cone cells under well-lit conditions. Therefore, mesopic vision is the only category that encompasses the involvement of both rods and cones in less than ideal lighting situations.