Assuming you have a SQL database, you would use the SQL INSERT statement.
Create an adjustment layer and create a hue and saturation layer. You'll see sliders so adjust them to your liking. next select a layer mask and fill it will black. then select which areas you want to darken and use the wand tool. Apply a gradient mask if you want.
I beleive its b. Because mbgs is the biggest
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Answer:
I'm not going to answer it just because you said "ASAP" never rush an intellectual such as ME.