While You Are Sitting in a Park, You See a Tulip

Multiple Choice

While you are sitting in a park, you see a tulip that is exposed to the sun. Shortly after you notice it, the tulip is exposed to the shade. According to the concept of color constancy, you perceive that the color of the tulip has

A) changed, based on your prior experience with objects.
B) remained the same, but the lighting conditions have changed.
C) remained the same, because you cannot trust your sensations in bright light.
D) changed, because tulips normally change in color due to the heat.