The correct response is:
Red stripes reflect red and absorb all other light, as does the blue square with blue; white stripes and stars reflect all wavelengths; and the flagpole absorbs all wavelengths.
This explanation correctly describes how the colors of the American flag and the black flagpole are seen based on the way they interact with light. The red stripes reflect red light, the blue square reflects blue light, the white stripes and stars reflect all wavelengths of light, and the black flagpole absorbs all wavelengths, making it appear black.