According to the Ratio Principle, _____

Multiple Choice

 According to the ratio principle, _____.

A) lightness constancy will occur as long as the ratio of light reflected from a white surface and a black surface remain constant?
B) lightness constancy will occur if the ratio of light reflected from a white surface and a black surface increases as the overall light intensity increases
C) lightness constancy will occur if the ratio of light reflected from a white surface and a black surface decreases as the overall light intensity increases
D) lightness constancy cannot occur unless there are pre-existing cortical abnormalities