The correct statement explaining how rods and cones work to help us see things is:
Rods detect light; cones detect green, blue, and red light; and the brain combines the three colors.
Rods are primarily responsible for vision in low-light conditions and do not detect color, while cones are responsible for color vision, detecting different wavelengths that correspond to colors, including green, blue, and red. The brain combines the input from these cones to create a full-color image.