Question: What does the grayscale image in this figure show?

1. the edges affected by the Sharpen command as refined by the Masking slider
2. the edges affected by the Sharpen command as refined by the Radius slider
3. the edges affected by the Sharpen command as refined by the Detail slider
4. the edges affected by the Sharpen command as refined by the Amount slider

Answer: The correct answer of the above question is Option A:the edges affected by the Sharpen command as refined by the Masking slider