Which part of the eye contains the receptor rods and cones?

The retina is the correct answer as it is the part of the eye that contains the receptor cells known as rods and cones. Rods are responsible for vision in low light, while cones are responsible for color vision and detail in brighter light conditions. These cells convert light into electrical signals, which are then processed by the brain to create visual images.

The other options represent different parts of the eye with distinct functions. The lens helps to focus light onto the retina, the pupil is the opening that allows light to enter the eye, and the cornea is the clear front surface of the eye that also helps to focus light. None of these parts contain the photoreceptor cells that are crucial for converting light into the signals that enable vision.