Which of the Following Is True About Photoreceptors

Multiple Choice

Which of the following is true about photoreceptors?

A) Three types of color- sensitive photoreceptors exist: red, green, and yellow.
B) Rods absorb light throughout the visual spectrum but confer only gray tone vision.
C) In dim light, images are focused directly on the rods in the fovea centralis.
D) If all cones are stimulated equally, all colors are absorbed by the cones and the color perceived is black.