Question: You have just one object on your artboard. You want to change its fill color from black to yellow, so you open the Color Picker and select a yellow color. But when you click OK, the fill of the object changes to gray, not yellow. Why is this happening?

1. The color mode of the fill is set to Grayscale.
2. The Luminosity blend mode is applied to the fill.
3. One of the Color Blindness options is chosen under Proof Setup in the View menu.
4. Overprint Preview is turned on in the Separations Preview panel.

Answer: The correct answer of the above question is Option A:The color mode of the fill is set to Grayscale.