Answer
Under red light, red and white appear red, and blue appears black.
Under green light, only white appears green, both red and blue appear black.
With blue light, red appears black, white and blue appears blue.
Work Step by Step
Under red light, red and white appear red, and blue appears black.
Under green light, only white appears green, both red and blue appear black.
With blue light, red appears black, white and blue appears blue.
