Which of the Following Most Strongly Supports the Retinex Theory

Which of the following most strongly supports the retinex theory of color vision?

A) We can match any color by some mixture of three other colors.
B) People who have trouble seeing red usually have trouble seeing green as well.
C) The apparent color of an object depends on the color of other objects we see at the same time.
D) Small blue dots, when viewed from a distance, are likely to appear black.