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 is because the red and blue colors of the flag are seen due to their ability to reflect specific wavelengths of light (red for the red stripes, blue for the blue square), while the white stripes and stars reflect all wavelengths, making them appear white. The black flagpole absorbs most wavelengths of visible light, which is why it appears black.