Red-Green Color Blind Individuals Do Not Have a Severe Difficulty

question 222

Multiple Choice

Red-green color blind individuals do not have a severe difficulty with traffic lights because

• A) the red light is always on top and the green light is brighter than the red.
• B) the "red" traffic signals have blue light mixed in with the red.
• C) the "green" light is really yellow-green.
• D) all of these are utilized.