Whats the besd tool to retouch some parts in your picture ?

a) The burn Tool
b) The Magic Wand Tool
c) The Spot Healing Brush Tool
d) The Path Selection Tool

I used protocols to clean up the image.I used chanel mixer to make it monochrome and I adjusted the colours.

I used the Healing brush to get rid of small flaws and the clone tool to get rid of the lines in the background. I made a second layer and used surface blur on it so the skin was smooth. I erased parts her that I wanted to be sharp and clear like the eyes, mouth, and hair.

I sharpened her eyes unsharp mask tool. I also used dodge and burn in some areas to darken or lighten the image.