What is a value scale and how is it used in planning a grayscale study?

• A. A value scale ranges from white to black (with grays in between) and is used to plan tonal relationships and ensure proper shading and contrast.
• B. A value scale measures color saturation levels.
• C. A value scale is used to mix colors in the color wheel.
• D. A value scale determines perspective lines.

Answer: (A)