Which method uses the Reduce Noise filter with luminance and color adjustments applied on a Smart Filter for non-destructive editing?

• A. Apply Blur > Gaussian Blur and then Noise.
• B. Use Clone Stamp to remove grain.
• C. Convert to Bitmap mode.
• D. Use Reduce Noise in Filter > Noise; adjust luminance and color settings; apply on a smart filter for non-destructive editing.

Answer: (D)